Number 91 facts
The odd number 91 is spelled 🔊, and written in words: ninety-one. The ordinal number 91st is said 🔊 and written as: ninety-first. Phone prefix +91 or 0091. The meaning of the number 91 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 91. What is 91 in computer science, numerology, codes and images, photo art, writing and naming in other languages. Other interesting facts, news related to 91. ‹‹ 90 92 ››
Interesting facts about the number 91
Asteroids
- (91) Aegina is asteroid number 91. It was discovered by E. J. M. Stephan from Marseille Observatory on 11/4/1866.
Aircrafts and flights
- 09/05/2005 the Mandala Airlines plane, flight number 091, Boeing 737-230 crashed in Medan, Indonesia 95 passengers and 5 crew members died.
Areas, mountains and surfaces
- The total area of Wrangel Island (Vrangelya) is 3,037 square miles (7,866 square km). Country Russia (Chukotka Autonomous Okrug). 91th largest island in the world.
Distances
- There is a 91 miles (146 km) direct distance between Beirut (Lebanon) and Homs (Syria).
- There is a 57 miles (91 km) direct distance between Bursa (Turkey) and İstanbul (Turkey).
- There is a 57 miles (91 km) direct distance between Casablanca (Morocco) and Sale (Morocco).
- There is a 91 miles (146 km) direct distance between Homs (Syria) and Ra’s Bayrūt (Lebanon).
- More distances ...
- There is a 57 miles (91 km) direct distance between Chandigarh (India) and Ludhiāna (India).
- There is a 91 miles (146 km) direct distance between Luoyang (China) and Xinxiang (China).
- There is a 91 miles (145 km) direct distance between Shanghai (China) and Shangyu (China).
- There is a 91 miles (145 km) direct distance between Shangyu (China) and Suzhou (China).
Games
History and politics
- United Nations Security Council Resolution number 91, adopted 30 March 1951. Resignation of UN Representative for India and Pakistan and new appointment. Resolution text.
Literature
- The ISBN Group Identifier for books published in Sweden. Example book: ISBN 91-1-811692-2 Torgny Lindgren, Ormens väg på hälleberget, P.A. Norstedt (1982)
Mathematics
- 91 is the 6th centered hexagonal number
Example of 4th centered hexagonal number with 37 dots. - 91 is the first non-trivial composite: every smaller composite is either even, a familiar square, ends in 5, has a digit sum that is a multiple of 3, or is obviously divisible by 11
- 91 is the smallest Cuban composite, that is the smallest composite number equal to the difference of two consecutive cubes
- 91 is the smallest pseudoprime in base 3.
Mobile and telephony
- Number 91 or +91 or 0091 is a dial the international call prefix for India. (00/+) is dial the international call prefix.
Science
- Protactinium is the chemical element in the periodic table that has the symbol Pa and atomic number 91.
Sports
- The best athletes to wear number 91
Sergei Fedorov, NHL; Kevin Greene, NFL; Dennis Rodman, NBA; Bob Kurland, Olympic basketball
Please write us
If you know something interesting about the number 91 or any natural number (positive integer), please write to us.What is 91 in other units
The decimal (Arabic) number 91 converted to a Roman number is XCI.
Roman and decimal number conversions.
91 kilograms (kg) = 200.6 pounds (lbs)
91 pounds (lbs) = 41.3 kilograms (kg)
91 kilometers (km) equals to 56.545 miles (mi).
91 miles (mi) equals to 146.450 kilometers (km).
91 meters (m) equals to 146.450 feet (ft).
91 feet (ft) equals 27.737 meters (m).
91 centimeters (cm) equals to 35.8 inches (in).
91 inches (in) equals to 231.1 centimeters (cm).
91° Fahrenheit (°F) equals to 32.8° Celsius (°C)
91° Celsius (°C) equals to 195.8° Fahrenheit (°F)
91 Horsepower (hp) equals to 66.92 kilowatts (kW)
91 kilowatts (kW) equals to 123.74 horsepower (hp)
91 seconds equals to 1 minute, 31 seconds
91 minutes equals to 1 hour, 31 minutes
| The number 91 converted to a Mayan number is |
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| Decimal and Mayan number conversions. |
Weight conversion
91 kilograms (kg) = 200.6 pounds (lbs)
91 pounds (lbs) = 41.3 kilograms (kg)
Length conversion
91 kilometers (km) equals to 56.545 miles (mi).
91 miles (mi) equals to 146.450 kilometers (km).
91 meters (m) equals to 146.450 feet (ft).
91 feet (ft) equals 27.737 meters (m).
91 centimeters (cm) equals to 35.8 inches (in).
91 inches (in) equals to 231.1 centimeters (cm).
Temperature conversion
91° Fahrenheit (°F) equals to 32.8° Celsius (°C)
91° Celsius (°C) equals to 195.8° Fahrenheit (°F)
Power conversion
91 Horsepower (hp) equals to 66.92 kilowatts (kW)
91 kilowatts (kW) equals to 123.74 horsepower (hp)
Time conversion
(hours, minutes, seconds, days, weeks)91 seconds equals to 1 minute, 31 seconds
91 minutes equals to 1 hour, 31 minutes
Codes and images of the number 91
Number 91 morse code: ----. .----Sign language for number 91:
Number 91 in braille:
| Images of the number | |
| Image (1) of the number | Image (2) of the number |
| More images, other sizes, codes and colors ... | |
Number 91 infographic |
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Year 91 AD
Pliny the Younger was named a tribunus plebis.
Gregorian, Hebrew, Islamic, Persian and Buddhist Year (Calendar)
Gregorian year 91 is Buddhist year 634.Buddhist year 91 is Gregorian year 452 a. C.
Gregorian year 91 is Islamic year -547 or -546.
Islamic year 91 is Gregorian year 709 or 710.
Gregorian year 91 is Persian year -532 or -531.
Persian year 91 is Gregorian 712 or 713.
Gregorian year 91 is Hebrew year 3851 or 3852.
Hebrew year 91 is Gregorian year 3669 a. C.
The Buddhist calendar is used in Sri Lanka, Cambodia, Laos, Thailand, and Burma. The Persian calendar is the official calendar in Iran and Afghanistan.
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Advanced math operations
Is Prime?
The number 91 is not a prime number. The closest prime numbers are 89, 97.
The 91st prime number in order is 467.
Factorization and factors (dividers)
The prime factors of 91 are 7 * 13
The factors of 91 are 1, 7, 13, 91.
Total factors 4.
Sum of factors 112 (21).
Prime factor tree
Powers
The second power of 912 is 8.281.
The third power of 913 is 753.571.
Roots
The square root √91 is 9,539392.
The cube root of 3√91 is 4,497941.
Logarithms
The natural logarithm of No. ln 91 = loge 91 = 4,51086.
The logarithm to base 10 of No. log10 91 = 1,959041.
The Napierian logarithm of No. log1/e 91 = -4,51086.
Trigonometric functions
The cosine of 91 is -0,994367.The sine of 91 is 0,105988.
The tangent of 91 is -0,106588.
Number 91 in Computer Science
| Code type | Code value |
|---|---|
| ASCII Html | [ Opening/Left square bracket [ (ISO 8859-1 Characters) |
| Unix time | Unix time 91 is equal to Thursday Jan. 1, 1970, 12:01:31 a.m. GMT |
| IPv4, IPv6 | Number 91 internet address in dotted format v4 0.0.0.91, v6 ::5b |
| 91 Decimal | = 1011011 Binary |
| 91 Decimal | = 10101 Ternary |
| 91 Decimal | = 133 Octal |
| 91 Decimal | = 5B Hexadecimal (0x5b hex) |
| 91 BASE64 | OTE= |
| 91 MD5 | 54229abfcfa5649e7003b83dd4755294 |
| 91 SHA1 | 4cd66dfabbd964f8c6c4414b07cdb45dae692e19 |
| 91 SHA224 | f0ef5d4592ab606e059053579d0bbfa3b58c2789bcf83487c7db70e6 |
| 91 SHA256 | 1da51b8d8ff98f6a48f80ae79fe3ca6c26e1abb7b7d125259255d6d2b875ea08 |
| 91 SHA384 | b101c4aa51e2b4c5b1bc0cd24037bb579520fb50433493df3db57157774da5724a1cc14b27a0dd34fa6fe5bce908e914 |
| More SHA codes related to the number 91 ... | |
If you know something interesting about the 91 number that you did not find on this page, do not hesitate to write us here.
Numerology 91
According to Wikipedia, numerology is based on faith, yet many people seek the meaning of the number 91 from a numerological perspective.
More about numerology 91 ...
More about numerology 91 ...
№ 91 in other languages
How to say or write the number ninety-one in Spanish, German, French and other languages.
| Spanish: | 🔊 (número 91) | noventa y uno |
| German: | 🔊 (Nummer 91) | einundneunzig |
| French: | 🔊 (nombre 91) | quatre-vingt-onze |
| Portuguese: | 🔊 (número 91) | noventa e um |
| Hindi: | 🔊 (संख्या 91) | इक्यानवे |
| Chinese: | 🔊 (数 91) | 九十一 |
| Arabian: | 🔊 (عدد 91) | واحد و تسعون |
| Czech: | 🔊 (číslo 91) | devadesát jedna |
| Korean: | 🔊 (번호 91) | 구십일 |
| Danish: | 🔊 (nummer 91) | enoghalvfems |
| Hebrew: | (מספר 91) | תשעים ואחת |
| Dutch: | 🔊 (nummer 91) | eenennegentig |
| Japanese: | 🔊 (数 91) | 九十一 |
| Indonesian: | 🔊 (jumlah 91) | sembilan puluh satu |
| Italian: | 🔊 (numero 91) | novantuno |
| Norwegian: | 🔊 (nummer 91) | nitti-en |
| Polish: | 🔊 (liczba 91) | dziewięćdzisiąt jeden |
| Russian: | 🔊 (номер 91) | девяносто один |
| Turkish: | 🔊 (numara 91) | doksanbir |
| Thai: | 🔊 (จำนวน 91) | เก้าสิบเอ็ด |
| Ukrainian: | 🔊 (номер 91) | дев'яносто один |
| Vietnamese: | 🔊 (con số 91) | chín mươi mốt |
| Other languages ... | ||
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Frequently asked questions about the number 91
How do you write the number 91 in words?
91 can be written as "ninety-one".
Number 91 in News
| NASA: NASA to Provide Coverage of Progress 91 Launch, Space Station Docking
NASA will provide live launch and docking coverage of a Roscosmos cargo spacecraft delivering approximately three tons of food, fuel, and supplies for the crew aboard the International Space Station. The unpiloted Roscosmos Progress 91 spacecraft is scheduled to launch at 4:24 p.m. EST, Thursday, Feb. 27 (2:24 a.m. Baikonur … Feb. 24, 2025 |
| BBC: Man, 91, given artificial cornea in England first
Cecil Farley, 91, says: "It makes life fuller when your eyes work properly." ... June 4, 2024 |
| NyTimes: Peter Magubane, 91, Who Fought Apartheid With His Camera, Is Dead
He documented the cruelties of white South African rule, and he was made to pay for it, enduring beatings and 586 consecutive days in solitary confinement. Jan. 1, 2024 |
| BBC: Ukraine war: Holocaust survivor aged 91 among Mariupol's civilian dead - reports
The woman reportedly died in a basement more than 80 years after surviving the city's Nazi occupiers. April 20, 2022 |
| BBC: Couple married for 91 years and still in love
Yemeni Jews Shama’a and Zechariah married young and survived extreme poverty and persecution together. Feb. 14, 2022 |
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