21491946432
21,491,946,432 is an even composite number composed of four prime numbers multiplied together.
21491946432 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of four hundred sixty-two divisors.
Prime factorization of 21491946432:
26 × 310 × 112 × 47
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 11 × 11 × 47)See below for interesting mathematical facts about the number 21491946432 from the Numbermatics database.
Names of 21491946432
- Cardinal: 21491946432 can be written as Twenty-one billion, four hundred ninety-one million, nine hundred forty-six thousand, four hundred thirty-two.
Scientific notation
- Scientific notation: 2.1491946432 × 1010
Factors of 21491946432
Divisors of 21491946432
- Number of divisors d(n): 462
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 47 48 54 64 66 72 81 88 94 96 99 108 121 132 141 144 162 176 188 192 198 216 242 243 264 282 288 297 324 352 363 376 396 423 432 484 486 517 528 564 576 594 648 704 726 729 752 792 846 864 891 968 972 1034 1056 1089 1128 1188 1269 1296 1452 1458 1504 1551 1584 1692 1728 1782 1936 1944 2068 2112 2178 2187 2256 2376 2538 2592 2673 2904 2916 3008 3102 3168 3267 3384 3564 3807 3872 3888 4136 4356 4374 4512 4653 4752 5076 5184 5346 5687 5808 5832 6204 6336 6534 6561 6768 7128 7614 7744 7776 8019 8272 8712 8748 9024 9306 9504 9801 10152 10692 11374 11421 11616 11664 12408 13068 13122 13536 13959 14256 15228 15552 16038 16544 17061 17424 17496 18612 19008 19602 19683 20304 21384 22748 22842 23232 23328 24057 24816 26136 26244 27072 27918 28512 29403 30456 32076 33088 34122 34263 34848 34992 37224 39204 39366 40608 41877 42768 45496 45684 46656 48114 49632 51183 52272 52488 55836 57024 58806 59049 60912 64152 68244 68526 69696 69984 72171 74448 78408 78732 81216 83754 85536 88209 90992 91368 96228 99264 102366 102789 104544 104976 111672 117612 118098 121824 125631 128304 136488 137052 139968 144342 148896 153549 156816 157464 167508 171072 176418 181984 182736 192456 204732 205578 209088 209952 216513 223344 235224 236196 243648 251262 256608 264627 272976 274104 288684 297792 307098 308367 313632 314928 335016 352836 363968 365472 376893 384912 409464 411156 419904 433026 446688 460647 470448 472392 502524 513216 529254 545952 548208 577368 614196 616734 627264 629856 649539 670032 705672 730944 753786 769824 793881 818928 822312 866052 893376 921294 925101 940896 944784 1005048 1058508 1091904 1096416 1130679 1154736 1228392 1233468 1259712 1299078 1340064 1381941 1411344 1507572 1539648 1587762 1637856 1644624 1732104 1842588 1850202 1881792 1889568 2010096 2117016 2192832 2261358 2309472 2381643 2456784 2466936 2598156 2680128 2763882 2775303 2822688 3015144 3175524 3275712 3289248 3392037 3464208 3685176 3700404 3779136 4020192 4145823 4234032 4522716 4618944 4763286 4913568 4933872 5196312 5527764 5550606 5645376 6030288 6351048 6578496 6784074 6928416 7144929 7370352 7400808 8040384 8291646 8468064 9045432 9526572 9827136 9867744 10176111 10392624 11055528 11101212 12060576 12437469 12702096 13568148 13856832 14289858 14740704 14801616 16583292 16936128 18090864 19053144 19735488 20352222 20785248 22111056 22202424 24121152 24874938 25404192 27136296 28579716 29481408 29603232 30528333 33166584 36181728 37312407 38106288 40704444 41570496 44222112 44404848 49749876 50808384 54272592 57159432 59206464 61056666 66333168 72363456 74624814 76212576 81408888 88444224 88809696 99499752 108545184 111937221 114318864 122113332 132666336 149249628 152425152 162817776 177619392 198999504 217090368 223874442 228637728 244226664 265332672 298499256 325635552 335811663 397999008 447748884 457275456 488453328 596998512 651271104 671623326 795998016 895497768 976906656 1193997024 1343246652 1790995536 1953813312 2387994048 2686493304 3581991072 5372986608 7163982144 10745973216 21491946432
- Sum of all divisors σ(n): 71812154064
- Sum of proper divisors (its aliquot sum) s(n): 50320207632
- 21491946432 is an abundant number, because the sum of its proper divisors (50320207632) is greater than itself. Its abundance is 28828261200
Bases of 21491946432
- Binary: 101000000010000010100010011110000002
- Hexadecimal: 0x5010513C0
- Base-36: 9VFR000
Squares and roots of 21491946432
- 21491946432 squared (214919464322) is 461903761435957530624
- 21491946432 cubed (214919464323) is 9927210897520906646798007533568
-
The
square root of 21491946432 is 146601.3179749759 -
The
cube root of 21491946432 is 2780.3016438557
Scales and comparisons
How big is 21491946432?- 21,491,946,432 seconds is equal to 683 years, 19 weeks, 4 days, 9 hours, 7 minutes, 12 seconds.
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To count from 1 to 21,491,946,432 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 21491946432 cubic inches would be around 231.7 feet tall.
Recreational maths with 21491946432
- 21491946432 backwards is 23464919412
- The number of decimal digits it has is: 11
- The sum of 21491946432's digits is 45
- More coming soon!
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