21639216514160

Names of 21639216514160

• Cardinal: 21639216514160 can be written as Twenty-one trillion, six hundred thirty-nine billion, two hundred sixteen million, five hundred fourteen thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.163921651416 × 10¹³

Factors of 21639216514160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 375159904

Divisors of 21639216514160

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 103 112 140 206 280 412 515 560 721 824 1030 1442 1648 2060 2884 3605 4120 5768 7210 8240 11536 14420 28840 57680 375159787 750319574 1500639148 1875798935 2626118509 3001278296 3751597870 5252237018 6002556592 7503195740 10504474036 13130592545 15006391480 21008948072 26261185090 30012782960 38641458061 42017896144 52522370180 77282916122 105044740360 154565832244 193207290305 210089480720 270490206427 309131664488 386414580610 540980412854 618263328976 772829161220 1081960825708 1352451032135 1545658322440 2163921651416 2704902064270 3091316644880 4327843302832 5409804128540 10819608257080 21639216514160
• Sum of all divisors σ(n): 58056727512576
• Sum of proper divisors (its aliquot sum) s(n): 36417510998416
• 21639216514160 is an abundant number, because the sum of its proper divisors (36417510998416) is greater than itself. Its abundance is 14778294484256

Bases of 21639216514160

• Binary: 100111010111001000101110100000100010001110000₂
• Hexadecimal: 0x13AE45D04470
• Base-36: 7O4X2SYNK

Squares and roots of 21639216514160

• 21639216514160 squared (21639216514160²) is 468255691346694861480505600
• 21639216514160 cubed (21639216514160³) is 10132686289038807256483370446426359296000
• The square root of 21639216514160 is 4651797.1273648639
• The cube root of 21639216514160 is 27866.3771575795

Scales and comparisons

• 21,639,216,514,160 seconds is equal to 688,060 years, 7 weeks, 5 days, 20 hours, 9 minutes, 20 seconds.
• To count from 1 to 21,639,216,514,160 would take you about one million, seven hundred twenty thousand, one 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 21639216514160 cubic inches would be around 2322.2 feet tall.

Recreational maths with 21639216514160

• 21639216514160 backwards is 06141561293612
• The number of decimal digits it has is: 14
• The sum of 21639216514160's digits is 47
• More coming soon!