21231991264
21,231,991,264 is an even composite number composed of six prime numbers multiplied together.
21231991264 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21231991264:
25 × 11 × 31 × 67 × 113 × 257
(2 × 2 × 2 × 2 × 2 × 11 × 31 × 67 × 113 × 257)See below for interesting mathematical facts about the number 21231991264 from the Numbermatics database.
Names of 21231991264
- Cardinal: 21231991264 can be written as Twenty-one billion, two hundred thirty-one million, nine hundred ninety-one thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 2.1231991264 × 1010
Factors of 21231991264
Divisors of 21231991264
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 8 11 16 22 31 32 44 62 67 88 113 124 134 176 226 248 257 268 341 352 452 496 514 536 682 737 904 992 1028 1072 1243 1364 1474 1808 2056 2077 2144 2486 2728 2827 2948 3503 3616 4112 4154 4972 5456 5654 5896 7006 7571 7967 8224 8308 9944 10912 11308 11792 14012 15142 15934 16616 17219 19888 22616 22847 23584 28024 29041 30284 31868 33232 34438 38533 39776 45232 45694 56048 58082 60568 63736 66464 68876 77066 83281 87637 90464 91388 112096 116164 121136 127472 137752 154132 166562 175274 182776 189409 232328 234701 242272 254944 275504 308264 319451 333124 350548 365552 378818 464656 469402 533789 551008 616528 638902 666248 701096 731104 757636 900271 929312 938804 1067578 1233056 1277804 1332496 1402192 1515272 1800542 1877608 1945747 2135156 2555608 2581711 2664992 2804384 3030544 3601084 3755216 3891494 4270312 5111216 5163422 5871679 6061088 7202168 7510432 7782988 8540624 9902981 10222432 10326844 11743358 14404336 15565976 17081248 19805962 20653688 21403217 23486716 28808672 31131952 39611924 41307376 42806434 46973432 60318157 62263904 79223848 82614752 85612868 93946864 120636314 158447696 171225736 187893728 241272628 316895392 342451472 482545256 663499727 684902944 965090512 1326999454 1930181024 2653998908 5307997816 10615995632 21231991264
- Sum of all divisors σ(n): 48384387072
- Sum of proper divisors (its aliquot sum) s(n): 27152395808
- 21231991264 is an abundant number, because the sum of its proper divisors (27152395808) is greater than itself. Its abundance is 5920404544
Bases of 21231991264
- Binary: 100111100011000011001111001111000002
- Hexadecimal: 0x4F18679E0
- Base-36: 9R4Z9B4
Squares and roots of 21231991264
- 21231991264 squared (212319912642) is 450797453034572317696
- 21231991264 cubed (212319912643) is 9571327584663489739297704607744
-
The
square root of 21231991264 is 145712.0148237611 -
The
cube root of 21231991264 is 2769.0464582737
Scales and comparisons
How big is 21231991264?- 21,231,991,264 seconds is equal to 675 years, 5 weeks, 5 days, 15 hours, 21 minutes, 4 seconds.
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To count from 1 to 21,231,991,264 would take you about one thousand, three hundred fifty 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 21231991264 cubic inches would be around 230.8 feet tall.
Recreational maths with 21231991264
- 21231991264 backwards is 46219913212
- The number of decimal digits it has is: 11
- The sum of 21231991264's digits is 40
- More coming soon!
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