21015814400
21,015,814,400 is an even composite number composed of five prime numbers multiplied together.
21015814400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 21015814400:
28 × 52 × 7 × 532 × 167
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 53 × 53 × 167)See below for interesting mathematical facts about the number 21015814400 from the Numbermatics database.
Names of 21015814400
- Cardinal: 21015814400 can be written as Twenty-one billion, fifteen million, eight hundred fourteen thousand, four hundred.
Scientific notation
- Scientific notation: 2.10158144 × 1010
Factors of 21015814400
Divisors of 21015814400
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 53 56 64 70 80 100 106 112 128 140 160 167 175 200 212 224 256 265 280 320 334 350 371 400 424 448 530 560 640 668 700 742 800 835 848 896 1060 1120 1169 1280 1325 1336 1400 1484 1600 1670 1696 1792 1855 2120 2240 2338 2650 2672 2800 2809 2968 3200 3340 3392 3710 4175 4240 4480 4676 5300 5344 5600 5618 5845 5936 6400 6680 6784 7420 8350 8480 8851 8960 9275 9352 10600 10688 11200 11236 11690 11872 13360 13568 14045 14840 16700 16960 17702 18550 18704 19663 21200 21376 22400 22472 23380 23744 26720 28090 29225 29680 33400 33920 35404 37100 37408 39326 42400 42752 44255 44800 44944 46760 47488 53440 56180 58450 59360 61957 66800 67840 70225 70808 74200 74816 78652 84800 88510 89888 93520 94976 98315 106880 112360 116900 118720 123914 133600 140450 141616 148400 149632 157304 169600 177020 179776 187040 196630 213760 221275 224720 233800 237440 247828 267200 280900 283232 296800 299264 309785 314608 339200 354040 359552 374080 393260 442550 449440 467600 469103 474880 491575 495656 534400 561800 566464 593600 619570 629216 708080 719104 748160 786520 885100 898880 935200 938206 983150 991312 1068800 1123600 1132928 1187200 1239140 1258432 1416160 1496320 1548925 1573040 1770200 1797760 1870400 1876412 1966300 1982624 2247200 2265856 2345515 2374400 2478280 2516864 2832320 3097850 3146080 3283721 3540400 3595520 3740800 3752824 3932600 3965248 4494400 4691030 4956560 5033728 5664640 6195700 6292160 6567442 7080800 7481600 7505648 7865200 7930496 8988800 9382060 9913120 11329280 11727575 12391400 12584320 13134884 14161600 15011296 15730400 15860992 16418605 17977600 18764120 19826240 23455150 24782800 25168640 26269768 28323200 30022592 31460800 32837210 37528240 39652480 46910300 49565600 52539536 56646400 60045184 62921600 65674420 75056480 79304960 82093025 93820600 99131200 105079072 120090368 125843200 131348840 150112960 164186050 187641200 198262400 210158144 262697680 300225920 328372100 375282400 396524800 420316288 525395360 600451840 656744200 750564800 840632576 1050790720 1313488400 1501129600 2101581440 2626976800 3002259200 4203162880 5253953600 10507907200 21015814400
- Sum of all divisors σ(n): 60954140352
- Sum of proper divisors (its aliquot sum) s(n): 39938325952
- 21015814400 is an abundant number, because the sum of its proper divisors (39938325952) is greater than itself. Its abundance is 18922511552
Bases of 21015814400
- Binary: 100111001001010001111100001000000002
- Hexadecimal: 0x4E4A3E100
- Base-36: 9NK9U68
Squares and roots of 21015814400
- 21015814400 squared (210158144002) is 441664454895247360000
- 21015814400 cubed (210158144003) is 9281938211155689959849984000000
-
The
square root of 21015814400 is 144968.3220569239 -
The
cube root of 21015814400 is 2759.6165538859
Scales and comparisons
How big is 21015814400?- 21,015,814,400 seconds is equal to 668 years, 12 weeks, 2 days, 14 hours, 13 minutes, 20 seconds.
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To count from 1 to 21,015,814,400 would take you about one thousand, three hundred thirty-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 21015814400 cubic inches would be around 230 feet tall.
Recreational maths with 21015814400
- 21015814400 backwards is 00441851012
- The number of decimal digits it has is: 11
- The sum of 21015814400's digits is 26
- More coming soon!
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