21665375633664

Names of 21665375633664

• Cardinal: 21665375633664 can be written as Twenty-one trillion, six hundred sixty-five billion, three hundred seventy-five million, six hundred thirty-three thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1665375633664 × 10¹³

Factors of 21665375633664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1991

Divisors of 21665375633664

• Number of divisors d(n): 405
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 224 252 256 288 294 336 343 384 392 441 448 504 576 588 672 686 768 784 882 896 1008 1029 1152 1176 1344 1372 1568 1764 1792 1979 2016 2058 2304 2352 2401 2688 2744 3087 3136 3528 3958 4032 4116 4704 4802 5376 5488 5937 6174 6272 7056 7203 7916 8064 8232 9408 9604 10976 11874 12348 12544 13853 14112 14406 15832 16128 16464 17811 18816 19208 21609 21952 23748 24696 27706 28224 28812 31664 32928 35622 37632 38416 41559 43218 43904 47496 49392 55412 56448 57624 63328 65856 71244 76832 83118 86436 87808 94992 96971 98784 110824 112896 115248 124677 126656 131712 142488 153664 166236 172872 189984 193942 197568 221648 230496 249354 253312 263424 284976 290913 307328 332472 345744 379968 387884 395136 443296 460992 498708 506624 569952 581826 614656 664944 678797 691488 759936 775768 790272 872739 886592 921984 997416 1139904 1163652 1329888 1357594 1382976 1519872 1551536 1745478 1773184 1843968 1994832 2036391 2279808 2327304 2659776 2715188 2765952 3103072 3490956 3546368 3916441 3989664 4072782 4559616 4654608 4751579 5319552 5430376 5531904 6109173 6206144 6981912 7832882 7979328 8145564 9309216 9503158 10639104 10860752 11749323 12218346 12412288 13963824 14254737 15665764 15958656 16291128 18618432 19006316 21721504 23498646 24436692 24824576 27415087 27927648 28509474 31331528 31917312 32582256 35247969 37236864 38012632 42764211 43443008 46997292 48873384 54830174 55855296 57018948 62663056 65164512 70495938 74473728 76025264 82245261 85528422 86886016 93994584 97746768 109660348 111710592 114037896 125326112 130329024 140991876 152050528 164490522 171056844 173772032 187989168 191905609 195493536 219320696 223421184 228075792 246735783 250652224 260658048 281983752 304101056 328981044 342113688 375978336 383811218 390987072 438641392 456151584 493471566 501304448 521316096 563967504 575716827 608202112 657962088 684227376 751956672 767622436 781974144 877282784 912303168 986943132 1002608896 1127935008 1151433654 1216404224 1315924176 1343339263 1368454752 1503913344 1535244872 1563948288 1727150481 1754565568 1824606336 1973886264 2255870016 2302867308 2631848352 2686678526 2736909504 3007826688 3070489744 3454300962 3509131136 3649212672 3947772528 4030017789 4511740032 4605734616 5263696704 5373357052 5473819008 6140979488 6908601924 7018262272 7895545056 8060035578 9023480064 9211469232 9403374841 10527393408 10746714104 10947638016 12090053367 12281958976 13817203848 15791090112 16120071156 18422938464 18806749682 21054786816 21493428208 24180106734 24563917952 27634407696 28210124523 31582180224 32240142312 36845876928 37613499364 42986856416 48360213468 49127835904 55268815392 56420249046 63164360448 64480284624 73691753856 75226998728 84630373569 85973712832 96720426936 110537630784 112840498092 128960569248 147383507712 150453997456 169260747138 171947425664 193440853872 221075261568 225680996184 257921138496 300907994912 338521494276 343894851328 386881707744 442150523136 451361992368 515842276992 601815989824 677042988552 773763415488 902723984736 1031684553984 1203631979648 1354085977104 1547526830976 1805447969472 2407263959296 2708171954208 3095053661952 3610895938944 5416343908416 7221791877888 10832687816832 21665375633664
• Sum of all divisors σ(n): 72910228039103
• Sum of proper divisors (its aliquot sum) s(n): 51244852405439
• 21665375633664 is an abundant number, because the sum of its proper divisors (51244852405439) is greater than itself. Its abundance is 29579476771775

Bases of 21665375633664

• Binary: 100111011010001011101000001001100000100000000₂
• Hexadecimal: 0x13B45D04C100
• Base-36: 7OGXP9OG0

Squares and roots of 21665375633664

• 21665375633664 squared (21665375633664²) is 469388501347761769530064896
• 21665375633664 cubed (21665375633664³) is 10169478199821859465560543673675042258944
• 21665375633664 is a perfect square number. Its square root is 4654608
• The cube root of 21665375633664 is 27877.6016296893

Scales and comparisons

• 21,665,375,633,664 seconds is equal to 688,891 years, 48 weeks, 2 days, 10 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,665,375,633,664 would take you about one million, seven hundred twenty-two thousand, two hundred twenty-nine 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 21665375633664 cubic inches would be around 2323.1 feet tall.

Recreational maths with 21665375633664

• 21665375633664 backwards is 46633657356612
• 21665375633664 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21665375633664's digits is 63
• More coming soon!