21318467824640
21,318,467,824,640 is an even composite number composed of four prime numbers multiplied together.
21318467824640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred eight divisors.
Prime factorization of 21318467824640:
210 × 5 × 7 × 296
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 29 × 29 × 29 × 29 × 29 × 29)See below for interesting mathematical facts about the number 21318467824640 from the Numbermatics database.
Names of 21318467824640
- Cardinal: 21318467824640 can be written as Twenty-one trillion, three hundred eighteen billion, four hundred sixty-seven million, eight hundred twenty-four thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.131846782464 × 1013
Factors of 21318467824640
Divisors of 21318467824640
- Number of divisors d(n): 308
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 29 32 35 40 56 58 64 70 80 112 116 128 140 145 160 203 224 232 256 280 290 320 406 448 464 512 560 580 640 812 841 896 928 1015 1024 1120 1160 1280 1624 1682 1792 1856 2030 2240 2320 2560 3248 3364 3584 3712 4060 4205 4480 4640 5120 5887 6496 6728 7168 7424 8120 8410 8960 9280 11774 12992 13456 14848 16240 16820 17920 18560 23548 24389 25984 26912 29435 29696 32480 33640 35840 37120 47096 48778 51968 53824 58870 64960 67280 74240 94192 97556 103936 107648 117740 121945 129920 134560 148480 170723 188384 195112 207872 215296 235480 243890 259840 269120 341446 376768 390224 430592 470960 487780 519680 538240 682892 707281 753536 780448 853615 861184 941920 975560 1039360 1076480 1365784 1414562 1507072 1560896 1707230 1883840 1951120 2152960 2731568 2829124 3014144 3121792 3414460 3536405 3767680 3902240 4305920 4950967 5463136 5658248 6028288 6243584 6828920 7072810 7535360 7804480 9901934 10926272 11316496 12487168 13657840 14145620 15070720 15608960 19803868 20511149 21852544 22632992 24754835 24974336 27315680 28291240 30141440 31217920 39607736 41022298 43705088 45265984 49509670 54631360 56582480 62435840 79215472 82044596 87410176 90531968 99019340 102555745 109262720 113164960 124871680 143578043 158430944 164089192 174820352 181063936 198038680 205111490 218525440 226329920 287156086 316861888 328178384 362127872 396077360 410222980 437050880 452659840 574312172 594823321 633723776 656356768 717890215 724255744 792154720 820445960 874101760 905319680 1148624344 1189646642 1267447552 1312713536 1435780430 1584309440 1640891920 1810639360 2297248688 2379293284 2534895104 2625427072 2871560860 2974116605 3168618880 3281783840 3621278720 4163763247 4594497376 4758586568 5069790208 5250854144 5743121720 5948233210 6337237760 6563567680 8327526494 9188994752 9517173136 10501708288 11486243440 11896466420 12674475520 13127135360 16655052988 18377989504 19034346272 20818816235 21003416576 22972486880 23792932840 25348951040 26254270720 33310105976 36755979008 38068692544 41637632470 45944973760 47585865680 52508541440 66620211952 73511958016 76137385088 83275264940 91889947520 95171731360 105017082880 133240423904 147023916032 152274770176 166550529880 183779895040 190343462720 266480847808 304549540352 333101059760 367559790080 380686925440 532961695616 609099080704 666202119520 735119580160 761373850880 1065923391232 1332404239040 1522747701760 2131846782464 2664808478080 3045495403520 4263693564928 5329616956160 10659233912320 21318467824640
- Sum of all divisors σ(n): 60532280232816
- Sum of proper divisors (its aliquot sum) s(n): 39213812408176
- 21318467824640 is an abundant number, because the sum of its proper divisors (39213812408176) is greater than itself. Its abundance is 17895344583536
Bases of 21318467824640
- Binary: 1001101100011100101111011001110101100000000002
- Hexadecimal: 0x136397B3AC00
- Base-36: 7K1KHBDVK
Squares and roots of 21318467824640
- 21318467824640 squared (213184678246402) is 454477070390210933791129600
- 21318467824640 cubed (213184678246403) is 9688754802150360241648925711840313344000
-
The
square root of 21318467824640 is 4617192.6345605291 -
The
cube root of 21318467824640 is 27728.0074971119 - Being both a perfect square and a perfect cube, 21318467824640 is also a
perfect sixth number .
Scales and comparisons
How big is 21318467824640?- 21,318,467,824,640 seconds is equal to 677,861 years, 17 weeks, 2 days, 17 hours, 57 minutes, 20 seconds.
-
To count from 1 to 21,318,467,824,640 would take you about one million, six hundred ninety-four thousand, six hundred fifty-three 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 21318467824640 cubic inches would be around 2310.7 feet tall.
Recreational maths with 21318467824640
- 21318467824640 backwards is 04642876481312
- 21318467824640 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21318467824640's digits is 56
- More coming soon!
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