21481743864
21,481,743,864 is an even composite number composed of seven prime numbers multiplied together.
21481743864 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21481743864:
23 × 3 × 72 × 17 × 37 × 113 × 257
(2 × 2 × 2 × 3 × 7 × 7 × 17 × 37 × 113 × 257)See below for interesting mathematical facts about the number 21481743864 from the Numbermatics database.
Names of 21481743864
- Cardinal: 21481743864 can be written as Twenty-one billion, four hundred eighty-one million, seven hundred forty-three thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.1481743864 × 1010
Factors of 21481743864
Divisors of 21481743864
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 17 21 24 28 34 37 42 49 51 56 68 74 84 98 102 111 113 119 136 147 148 168 196 204 222 226 238 257 259 294 296 339 357 392 408 444 452 476 514 518 588 629 678 714 771 777 791 833 888 904 952 1028 1036 1176 1258 1356 1428 1542 1554 1582 1666 1799 1813 1887 1921 2056 2072 2373 2499 2516 2712 2856 3084 3108 3164 3332 3598 3626 3774 3842 4181 4369 4403 4746 4998 5032 5397 5439 5537 5763 6168 6216 6328 6664 7196 7252 7548 7684 8362 8738 8806 9492 9509 9996 10794 10878 11074 11526 12543 12593 13107 13209 13447 14392 14504 15096 15368 16611 16724 17476 17612 18984 19018 19992 21588 21756 22148 23052 25086 25186 26214 26418 26894 28527 29041 29267 30583 30821 33222 33448 34952 35224 37779 38036 40341 43176 43512 44296 46104 50172 50372 52428 52836 53788 57054 58082 58534 61166 61642 66444 66563 71077 75558 76072 80682 87123 87801 91749 92463 94129 100344 100744 104856 105672 107576 114108 116164 117068 122332 123284 132888 133126 142154 151116 161364 161653 174246 175602 183498 184926 188258 199689 203287 204869 213231 214081 228216 232328 234136 244664 246568 266252 282387 284308 302232 322728 323306 348492 351204 366996 369852 376516 399378 406574 409738 426462 428162 465941 484959 493697 497539 532504 564774 568616 609861 614607 642243 646612 696984 702408 733992 739704 753032 798756 813148 819476 852924 856324 931882 969918 987394 995078 1074517 1129548 1131571 1219722 1229214 1284486 1293224 1397823 1423009 1481091 1492617 1597512 1626296 1638952 1705848 1712648 1863764 1939836 1974788 1990156 2149034 2259096 2263142 2439444 2458428 2568972 2795646 2846018 2962182 2985234 3223551 3394713 3455879 3482773 3727528 3879672 3949576 3980312 4269027 4298068 4526284 4878888 4916856 5137944 5591292 5692036 5924364 5970468 6447102 6789426 6911758 6965546 7521619 7920997 8538054 8596136 9052568 10367637 10448319 11182584 11384072 11848728 11940936 12894204 13578852 13823516 13931092 15043238 15841994 17076108 18266789 20735274 20896638 22564857 23762991 24191153 25788408 27157704 27647032 27862184 30086476 31683988 34152216 36533578 41470548 41793276 45129714 47525982 48382306 52651333 54800367 60172952 63367976 72573459 73067156 82941096 83586552 90259428 95051964 96764612 105302666 109600734 127867523 145146918 146134312 157953999 180518856 190103928 193529224 210605332 219201468 255735046 290293836 315907998 383602569 421210664 438402936 511470092 580587672 631815996 767205138 895072661 1022940184 1263631992 1534410276 1790145322 2685217983 3068820552 3580290644 5370435966 7160581288 10740871932 21481743864
- Sum of all divisors σ(n): 68802903360
- Sum of proper divisors (its aliquot sum) s(n): 47321159496
- 21481743864 is an abundant number, because the sum of its proper divisors (47321159496) is greater than itself. Its abundance is 25839415632
Bases of 21481743864
- Binary: 101000000000110100101100101111110002
- Hexadecimal: 0x5006965F8
- Base-36: 9V9OBNC
Squares and roots of 21481743864
- 21481743864 squared (214817438642) is 461465319438501650496
- 21481743864 cubed (214817438643) is 9913079794296832755896320556544
-
The
square root of 21481743864 is 146566.5168583875 -
The
cube root of 21481743864 is 2779.8616231177
Scales and comparisons
How big is 21481743864?- 21,481,743,864 seconds is equal to 683 years, 2 weeks, 5 days, 7 hours, 4 minutes, 24 seconds.
-
To count from 1 to 21,481,743,864 would take you about one thousand, three hundred sixty-six 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 21481743864 cubic inches would be around 231.7 feet tall.
Recreational maths with 21481743864
- 21481743864 backwards is 46834718412
- The number of decimal digits it has is: 11
- The sum of 21481743864's digits is 48
- More coming soon!
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