21057423072
21,057,423,072 is an even composite number composed of five prime numbers multiplied together.
21057423072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21057423072:
25 × 3 × 75 × 31 × 421
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 7 × 7 × 31 × 421)See below for interesting mathematical facts about the number 21057423072 from the Numbermatics database.
Names of 21057423072
- Cardinal: 21057423072 can be written as Twenty-one billion, fifty-seven million, four hundred twenty-three thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1057423072 × 1010
Factors of 21057423072
Divisors of 21057423072
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 49 56 62 84 93 96 98 112 124 147 168 186 196 217 224 248 294 336 343 372 392 421 434 496 588 651 672 686 744 784 842 868 992 1029 1176 1263 1302 1372 1488 1519 1568 1684 1736 2058 2352 2401 2526 2604 2744 2947 2976 3038 3368 3472 4116 4557 4704 4802 5052 5208 5488 5894 6076 6736 6944 7203 8232 8841 9114 9604 10104 10416 10633 10976 11788 12152 13051 13472 14406 16464 16807 17682 18228 19208 20208 20629 20832 21266 23576 24304 26102 28812 31899 32928 33614 35364 36456 38416 39153 40416 41258 42532 47152 48608 50421 52204 57624 61887 63798 67228 70728 72912 74431 76832 78306 82516 85064 91357 94304 100842 104408 115248 123774 127596 134456 141456 144403 145824 148862 156612 165032 170128 182714 201684 208816 223293 230496 247548 255192 268912 274071 282912 288806 297724 313224 330064 340256 365428 403368 417632 433209 446586 495096 510384 521017 537824 548142 577612 595448 626448 639499 660128 730856 806736 866418 893172 990192 1010821 1020768 1042034 1096284 1155224 1190896 1252896 1278998 1461712 1563051 1613472 1732836 1786344 1918497 1980384 2021642 2084068 2192568 2310448 2381792 2557996 2923424 3032463 3126102 3465672 3572688 3836994 4043284 4168136 4385136 4476493 4620896 5115992 6064926 6252204 6931344 7075747 7145376 7673988 8086568 8336272 8770272 8952986 10231984 12129852 12504408 13429479 13862688 14151494 15347976 16173136 16672544 17905972 20463968 21227241 24259704 25008816 26858958 28302988 30695952 31335451 32346272 35811944 42454482 48519408 50017632 53717916 56605976 61391904 62670902 71623888 84908964 94006353 97038816 107435832 113211952 125341804 143247776 169817928 188012706 214871664 219348157 226423904 250683608 339635856 376025412 429743328 438696314 501367216 658044471 679271712 752050824 877392628 1002734432 1316088942 1504101648 1754785256 2632177884 3008203296 3509570512 5264355768 7019141024 10528711536 21057423072
- Sum of all divisors σ(n): 66726180864
- Sum of proper divisors (its aliquot sum) s(n): 45668757792
- 21057423072 is an abundant number, because the sum of its proper divisors (45668757792) is greater than itself. Its abundance is 24611334720
Bases of 21057423072
- Binary: 100111001110001111011000110111000002
- Hexadecimal: 0x4E71EC6E0
- Base-36: 9O91NMO
Squares and roots of 21057423072
- 21057423072 squared (210574230722) is 443415066433197917184
- 21057423072 cubed (210574230723) is 9337178650382834568052706869248
-
The
square root of 21057423072 is 145111.7606260775 -
The
cube root of 21057423072 is 2761.4365846187
Scales and comparisons
How big is 21057423072?- 21,057,423,072 seconds is equal to 669 years, 29 weeks, 1 day, 4 hours, 11 minutes, 12 seconds.
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To count from 1 to 21,057,423,072 would take you about one thousand, three hundred thirty-nine 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 21057423072 cubic inches would be around 230.1 feet tall.
Recreational maths with 21057423072
- 21057423072 backwards is 27032475012
- The number of decimal digits it has is: 11
- The sum of 21057423072's digits is 33
- More coming soon!
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