21082390472
21,082,390,472 is an even composite number composed of five prime numbers multiplied together.
21082390472 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21082390472:
23 × 113 × 13 × 173 × 31
(2 × 2 × 2 × 11 × 11 × 11 × 13 × 17 × 17 × 17 × 31)See below for interesting mathematical facts about the number 21082390472 from the Numbermatics database.
Names of 21082390472
- Cardinal: 21082390472 can be written as Twenty-one billion, eighty-two million, three hundred ninety thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1082390472 × 1010
Factors of 21082390472
Divisors of 21082390472
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 8 11 13 17 22 26 31 34 44 52 62 68 88 104 121 124 136 143 187 221 242 248 286 289 341 374 403 442 484 527 572 578 682 748 806 884 968 1054 1144 1156 1331 1364 1496 1573 1612 1768 2057 2108 2312 2431 2662 2728 3146 3179 3224 3751 3757 4114 4216 4433 4862 4913 5324 5797 6292 6358 6851 7502 7514 8228 8866 8959 9724 9826 10648 11594 12584 12716 13702 15004 15028 16456 17303 17732 17918 19448 19652 22627 23188 25432 26741 27404 30008 30056 34606 34969 35464 35836 39304 41261 41327 45254 46376 48763 53482 54043 54808 63767 63869 69212 69938 71672 75361 82522 82654 90508 97526 98549 106964 108086 116467 127534 127738 138424 139876 150722 152303 165044 165308 181016 195052 197098 213928 216172 232934 255068 255476 279752 294151 301444 304606 330088 330616 384659 390104 394196 432344 454597 465868 510136 510952 536393 588302 594473 602888 609212 701437 702559 769318 788392 828971 909194 931736 1072786 1084039 1176604 1188946 1218424 1281137 1402874 1405118 1538636 1657942 1675333 1818388 1979939 2145572 2168078 2353208 2377892 2562274 2805748 2810236 3077272 3315884 3350666 3636776 3959878 4291144 4336156 4755784 5000567 5124548 5611496 5620472 6539203 6631768 6701332 7728149 7919756 8672312 9118681 10001134 10249096 11924429 13078406 13402664 14092507 15456298 15839512 18237362 18428663 20002268 21779329 23848858 26156812 28185014 30912596 36474724 36857326 40004536 43558658 47697716 52313624 56370028 61825192 72949448 73714652 85009639 87117316 95395432 112740056 147429304 155017577 170019278 174234632 202715293 239572619 310035154 340038556 405430586 479145238 620070308 680077112 810861172 958290476 1240140616 1621722344 1916580952 2635298809 5270597618 10541195236 21082390472
- Sum of all divisors σ(n): 51354777600
- Sum of proper divisors (its aliquot sum) s(n): 30272387128
- 21082390472 is an abundant number, because the sum of its proper divisors (30272387128) is greater than itself. Its abundance is 9189996656
Bases of 21082390472
- Binary: 100111010001001101110111111110010002
- Hexadecimal: 0x4E89BBFC8
- Base-36: 9ONWSLK
Squares and roots of 21082390472
- 21082390472 squared (210823904722) is 444467188013876382784
- 21082390472 cubed (210823904723) is 9370430809700380056191226434048
-
The
square root of 21082390472 is 145197.7633161063 -
The
cube root of 21082390472 is 2762.5275484433
Scales and comparisons
How big is 21082390472?- 21,082,390,472 seconds is equal to 670 years, 18 weeks, 3 days, 3 hours, 34 minutes, 32 seconds.
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To count from 1 to 21,082,390,472 would take you about one thousand, three hundred forty years!
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 21082390472 cubic inches would be around 230.2 feet tall.
Recreational maths with 21082390472
- 21082390472 backwards is 27409328012
- The number of decimal digits it has is: 11
- The sum of 21082390472's digits is 38
- More coming soon!
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