21012879981720
21,012,879,981,720 is an even composite number composed of seven prime numbers multiplied together.
21012879981720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21012879981720:
23 × 3 × 5 × 11 × 31 × 701 × 732541
(2 × 2 × 2 × 3 × 5 × 11 × 31 × 701 × 732541)See below for interesting mathematical facts about the number 21012879981720 from the Numbermatics database.
Names of 21012879981720
- Cardinal: 21012879981720 can be written as Twenty-one trillion, twelve billion, eight hundred seventy-nine million, nine hundred eighty-one thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.101287998172 × 1013
Factors of 21012879981720
Divisors of 21012879981720
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 31 33 40 44 55 60 62 66 88 93 110 120 124 132 155 165 186 220 248 264 310 330 341 372 440 465 620 660 682 701 744 930 1023 1240 1320 1364 1402 1705 1860 2046 2103 2728 2804 3410 3505 3720 4092 4206 5115 5608 6820 7010 7711 8184 8412 10230 10515 13640 14020 15422 16824 20460 21030 21731 23133 28040 30844 38555 40920 42060 43462 46266 61688 65193 77110 84120 86924 92532 108655 115665 130386 154220 173848 185064 217310 231330 239041 260772 308440 325965 434620 462660 478082 521544 651930 717123 732541 869240 925320 956164 1195205 1303860 1434246 1465082 1912328 2197623 2390410 2607720 2868492 2930164 3585615 3662705 4395246 4780820 5736984 5860328 7171230 7325410 8057951 8790492 9561640 10988115 14342460 14650820 16115902 17580984 21976230 22708771 24173853 28684920 29301640 32231804 40289755 43952460 45417542 48347706 64463608 68126313 80579510 87904920 90835084 96695412 113543855 120869265 136252626 161159020 181670168 193390824 227087710 241738530 249796481 272505252 322318040 340631565 454175420 483477060 499592962 513511241 545010504 681263130 749389443 908350840 966954120 999185924 1027022482 1248982405 1362526260 1498778886 1540533723 1998371848 2054044964 2497964810 2567556205 2725052520 2997557772 3081067446 3746947215 4108089928 4995929620 5135112410 5648623651 5995115544 6162134892 7493894430 7702668615 9991859240 10270224820 11297247302 12324269784 14987788860 15405337230 15918848471 16945870953 20540449640 22594494604 28243118255 29975577720 30810674460 31837696942 33891741906 45188989208 47756545413 56486236510 61621348920 63675393884 67783483812 79594242355 84729354765 95513090826 112972473020 127350787768 135566967624 159188484710 169458709530 175107333181 191026181652 225944946040 238782727065 318376969420 338917419060 350214666362 382052363304 477565454130 525321999543 636753938840 677834838120 700429332724 875536665905 955130908260 1050643999086 1400858665448 1751073331810 1910261816520 2101287998172 2626609997715 3502146663620 4202575996344 5253219995430 7004293327240 10506439990860 21012879981720
- Sum of all divisors σ(n): 71089157468160
- Sum of proper divisors (its aliquot sum) s(n): 50076277486440
- 21012879981720 is an abundant number, because the sum of its proper divisors (50076277486440) is greater than itself. Its abundance is 29063397504720
Bases of 21012879981720
- Binary: 1001100011100011100010011111100111100100110002
- Hexadecimal: 0x131C713F3C98
- Base-36: 7G56M7D7C
Squares and roots of 21012879981720
- 21012879981720 squared (210128799817202) is 441541125126169107534158400
- 21012879981720 cubed (210128799817203) is 9278050669269804549015995074467584448000
-
The
square root of 21012879981720 is 4583980.8007582231 -
The
cube root of 21012879981720 is 27594.8810702447
Scales and comparisons
How big is 21012879981720?- 21,012,879,981,720 seconds is equal to 668,144 years, 30 weeks, 3 days, 10 hours, 2 minutes.
-
To count from 1 to 21,012,879,981,720 would take you about one million, six hundred seventy thousand, three hundred sixty-one 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 21012879981720 cubic inches would be around 2299.6 feet tall.
Recreational maths with 21012879981720
- 21012879981720 backwards is 02718997821012
- The number of decimal digits it has is: 14
- The sum of 21012879981720's digits is 57
- More coming soon!
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The information we have on file for 21012879981720 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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