545
545 is an odd composite number composed of two prime numbers multiplied together.
545 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 545:
5^{} × 109^{}
See below for interesting mathematical facts about the number 545 from the Numbermatics database.
Names of 545
 Cardinal: 545 can be written as Five hundred fortyfive.
Scientific notation
 Scientific notation: 5.45 × 10^{2}
Factors of 545
Divisors of 545
Bases of 545
 Binary: 1000100001_{2}
 Hexadecimal: 0x221
 Base36: F5
Squares and roots of 545
Scales and comparisons
How big is 545? 545 seconds is equal to 9 minutes, 5 seconds.

To count from 1 to 545 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 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 545 cubic inches would be around 0.7 feet tall.
Recreational maths with 545
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The information we have on file for 545 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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