231 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.
Prime factorization of 231:
3 × 7 × 11
See below for interesting mathematical facts about the number 231 from the Numbermatics database.
Names of 231
- Cardinal: 231 can be written as Two hundred thirty-one.
- Scientific notation: 2.31 × 102
Factors of 231
Divisors of 231
Bases of 231
- Binary: 111001112
- Hexadecimal: 0xE7
- Base-36: 6F
Squares and roots of 231
Scales and comparisonsHow big is 231?
- 231 seconds is equal to 3 minutes, 51 seconds.
To count from 1 to 231 would take you about fifty-five seconds.
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 231 cubic inches would be around 0.5 feet tall.
Recreational maths with 231
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"Number 231 - Facts about the integer". Numbermatics.com. 2020. Web. 14 July 2020.
Numbermatics. (2020). Number 231 - Facts about the integer. Retrieved 14 July 2020, from https://numbermatics.com/n/231/
Numbermatics. 2020. "Number 231 - Facts about the integer". https://numbermatics.com/n/231/
The information we have on file for 231 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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