21275920
21,275,920 is an even composite number composed of five prime numbers multiplied together.
21275920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21275920:
24 × 5 × 23 × 31 × 373
(2 × 2 × 2 × 2 × 5 × 23 × 31 × 373)See below for interesting mathematical facts about the number 21275920 from the Numbermatics database.
Names of 21275920
- Cardinal: 21275920 can be written as Twenty-one million, two hundred seventy-five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.127592 × 107
Factors of 21275920
Divisors of 21275920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 20 23 31 40 46 62 80 92 115 124 155 184 230 248 310 368 373 460 496 620 713 746 920 1240 1426 1492 1840 1865 2480 2852 2984 3565 3730 5704 5968 7130 7460 8579 11408 11563 14260 14920 17158 23126 28520 29840 34316 42895 46252 57040 57815 68632 85790 92504 115630 137264 171580 185008 231260 265949 343160 462520 531898 686320 925040 1063796 1329745 2127592 2659490 4255184 5318980 10637960 21275920
- Sum of all divisors σ(n): 53425152
- Sum of proper divisors (its aliquot sum) s(n): 32149232
- 21275920 is an abundant number, because the sum of its proper divisors (32149232) is greater than itself. Its abundance is 10873312
Bases of 21275920
- Binary: 10100010010100101000100002
- Hexadecimal: 0x144A510
- Base-36: CO0LS
Squares and roots of 21275920
- 21275920 squared (212759202) is 452664771846400
- 21275920 cubed (212759203) is 9630859472622258688000
-
The
square root of 21275920 is 4612.5827905849 -
The
cube root of 21275920 is 277.0954850733
Scales and comparisons
How big is 21275920?- 21,275,920 seconds is equal to 35 weeks, 1 day, 5 hours, 58 minutes, 40 seconds.
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To count from 1 to 21,275,920 would take you about five days!
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 21275920 cubic inches would be around 23.1 feet tall.
Recreational maths with 21275920
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The information we have on file for 21275920 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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