253
253 is an odd composite number composed of two prime numbers multiplied together.
253 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.
Prime factorization of 253:
11^{} × 23^{}
See below for interesting mathematical facts about the number 253 from the Numbermatics database.
Names of 253
 Cardinal: 253 can be written as Two hundred fiftythree.
Scientific notation
 Scientific notation: 2.53 × 10^{2}
Factors of 253
Divisors of 253
Bases of 253
 Binary: 11111101_{2}
 Hexadecimal: 0xFD
 Base36: 71
Squares and roots of 253
Scales and comparisons
How big is 253? 253 seconds is equal to 4 minutes, 13 seconds.

To count from 1 to 253 would take you about two 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 randomlychosen 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 253 cubic inches would be around 0.5 feet tall.
Recreational maths with 253
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The information we have on file for 253 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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