21209472
21,209,472 is an even composite number composed of four prime numbers multiplied together.
21209472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21209472:
27 × 33 × 17 × 192
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 17 × 19 × 19)See below for interesting mathematical facts about the number 21209472 from the Numbermatics database.
Names of 21209472
- Cardinal: 21209472 can be written as Twenty-one million, two hundred nine thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1209472 × 107
Factors of 21209472
Divisors of 21209472
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 17 18 19 24 27 32 34 36 38 48 51 54 57 64 68 72 76 96 102 108 114 128 136 144 152 153 171 192 204 216 228 272 288 304 306 323 342 361 384 408 432 456 459 513 544 576 608 612 646 684 722 816 864 912 918 969 1026 1083 1088 1152 1216 1224 1292 1368 1444 1632 1728 1824 1836 1938 2052 2166 2176 2432 2448 2584 2736 2888 2907 3249 3264 3456 3648 3672 3876 4104 4332 4896 5168 5472 5776 5814 6137 6498 6528 7296 7344 7752 8208 8664 8721 9747 9792 10336 10944 11552 11628 12274 12996 14688 15504 16416 17328 17442 18411 19494 19584 20672 21888 23104 23256 24548 25992 29376 31008 32832 34656 34884 36822 38988 41344 46208 46512 49096 51984 55233 58752 62016 65664 69312 69768 73644 77976 93024 98192 103968 110466 124032 138624 139536 147288 155952 165699 186048 196384 207936 220932 279072 294576 311904 331398 372096 392768 415872 441864 558144 589152 623808 662796 785536 883728 1116288 1178304 1247616 1325592 1767456 2356608 2651184 3534912 5302368 7069824 10604736 21209472
- Sum of all divisors σ(n): 69951600
- Sum of proper divisors (its aliquot sum) s(n): 48742128
- 21209472 is an abundant number, because the sum of its proper divisors (48742128) is greater than itself. Its abundance is 27532656
Bases of 21209472
- Binary: 10100001110100001100000002
- Hexadecimal: 0x143A180
- Base-36: CMLC0
Squares and roots of 21209472
- 21209472 squared (212094722) is 449841702518784
- 21209472 cubed (212094723) is 9540904994004478722048
-
The
square root of 21209472 is 4605.3742518931 -
The
cube root of 21209472 is 276.8067135039
Scales and comparisons
How big is 21209472?- 21,209,472 seconds is equal to 35 weeks, 11 hours, 31 minutes, 12 seconds.
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To count from 1 to 21,209,472 would take you about four 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 21209472 cubic inches would be around 23.1 feet tall.
Recreational maths with 21209472
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The information we have on file for 21209472 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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