491 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 491:
See below for interesting mathematical facts about the number 491 from the Numbermatics database.
Names of 491
- Cardinal: 491 can be written as Four hundred ninety-one.
- Scientific notation: 4.91 × 102
Factors of 491
Divisors of 491
Bases of 491
- Binary: 1111010112
- Hexadecimal: 0x1EB
- Base-36: DN
Squares and roots of 491
Scales and comparisonsHow big is 491?
- 491 seconds is equal to 8 minutes, 11 seconds.
To count from 1 to 491 would take you about four minutes.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 491 cubic inches would be around 0.7 feet tall.
Recreational maths with 491
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Cite this page
"Number 491 - Facts about the integer". Numbermatics.com. 2020. Web. 27 May 2020.
Numbermatics. (2020). Number 491 - Facts about the integer. Retrieved 27 May 2020, from https://numbermatics.com/n/491/
Numbermatics. 2020. "Number 491 - Facts about the integer". https://numbermatics.com/n/491/
The information we have on file for 491 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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