225
225 is an odd composite number composed of two prime numbers multiplied together.
225 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.
Prime factorization of 225:
3^{2} × 5^{2}
(3 × 3 × 5 × 5)See below for interesting mathematical facts about the number 225 from the Numbermatics database.
Names of 225
 Cardinal: 225 can be written as Two hundred twentyfive.
Scientific notation
 Scientific notation: 2.25 × 10^{2}
Factors of 225
Divisors of 225
Bases of 225
 Binary: 11100001_{2}
 Hexadecimal: 0xE1
 Base36: 69
Squares and roots of 225
Scales and comparisons
How big is 225? 225 seconds is equal to 3 minutes, 45 seconds.

To count from 1 to 225 would take you about fiftytwo 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 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 225 cubic inches would be around 0.5 feet tall.
Recreational maths with 225
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The information we have on file for 225 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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