21025872
21,025,872 is an even composite number composed of five prime numbers multiplied together.
21025872 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21025872:
24 × 33 × 7 × 17 × 409
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 17 × 409)See below for interesting mathematical facts about the number 21025872 from the Numbermatics database.
Names of 21025872
- Cardinal: 21025872 can be written as Twenty-one million, twenty-five thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.1025872 × 107
Factors of 21025872
Divisors of 21025872
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 27 28 34 36 42 48 51 54 56 63 68 72 84 102 108 112 119 126 136 144 153 168 189 204 216 238 252 272 306 336 357 378 408 409 432 459 476 504 612 714 756 816 818 918 952 1008 1071 1224 1227 1428 1512 1636 1836 1904 2142 2448 2454 2856 2863 3024 3213 3272 3672 3681 4284 4908 5712 5726 6426 6544 6953 7344 7362 8568 8589 9816 11043 11452 12852 13906 14724 17136 17178 19632 20859 22086 22904 25704 25767 27812 29448 34356 41718 44172 45808 48671 51408 51534 55624 58896 62577 68712 77301 83436 88344 97342 103068 111248 125154 137424 146013 154602 166872 176688 187731 194684 206136 250308 292026 309204 333744 375462 389368 412272 438039 500616 584052 618408 750924 778736 876078 1001232 1168104 1236816 1314117 1501848 1752156 2336208 2628234 3003696 3504312 5256468 7008624 10512936 21025872
- Sum of all divisors σ(n): 73209600
- Sum of proper divisors (its aliquot sum) s(n): 52183728
- 21025872 is an abundant number, because the sum of its proper divisors (52183728) is greater than itself. Its abundance is 31157856
Bases of 21025872
- Binary: 10100000011010100010100002
- Hexadecimal: 0x140D450
- Base-36: CINO0
Squares and roots of 21025872
- 21025872 squared (210258722) is 442087293360384
- 21025872 cubed (210258723) is 9295270843021883854848
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The
square root of 21025872 is 4585.3976926761 -
The
cube root of 21025872 is 276.0056709609
Scales and comparisons
How big is 21025872?- 21,025,872 seconds is equal to 34 weeks, 5 days, 8 hours, 31 minutes, 12 seconds.
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To count from 1 to 21,025,872 would take you about forty-six 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 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 21025872 cubic inches would be around 23 feet tall.
Recreational maths with 21025872
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The information we have on file for 21025872 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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