18680394394944

Names of 18680394394944

• Cardinal: 18680394394944 can be written as Eighteen trillion, six hundred eighty billion, three hundred ninety-four million, three hundred ninety-four thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.8680394394944 × 10¹³

Factors of 18680394394944

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1068

Divisors of 18680394394944

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 486 576 648 864 972 1063 1296 1728 1944 2126 2592 3189 3888 4252 5184 6378 7776 8504 9567 12756 15552 17008 19134 25512 28701 34016 38268 51024 57402 68032 76536 86103 102048 114804 153072 172206 204096 229608 258309 306144 344412 459216 516618 612288 688824 918432 1033236 1129969 1377648 1836864 2066472 2259938 2755296 3389907 4132944 4519876 5510592 6779814 8265888 9039752 10169721 13559628 16531776 18079504 20339442 27119256 30509163 36159008 40678884 54238512 61018326 72318016 81357768 91527489 108477024 122036652 162715536 183054978 216954048 244073304 274582467 325431072 366109956 488146608 549164934 650862144 732219912 976293216 1098329868 1201157047 1464439824 1952586432 2196659736 2402314094 2928879648 3603471141 4393319472 4804628188 5857759296 7206942282 8786638944 9609256376 10810413423 14413884564 17573277888 19218512752 21620826846 28827769128 32431240269 38437025504 43241653692 57655538256 64862480538 76874051008 86483307384 97293720807 115311076512 129724961076 172966614768 194587441614 230622153024 259449922152 291881162421 345933229536 389174883228 518899844304 583762324842 691866459072 778349766456 1037799688608 1167524649684 1556699532912 2075599377216 2335049299368 3113399065824 4670098598736 6226798131648 9340197197472 18680394394944
• Sum of all divisors σ(n): 55579373362240
• Sum of proper divisors (its aliquot sum) s(n): 36898978967296
• 18680394394944 is an abundant number, because the sum of its proper divisors (36898978967296) is greater than itself. Its abundance is 18218584572352

Bases of 18680394394944

• Binary: 100001111110101011110010001011010110101000000₂
• Hexadecimal: 0x10FD5E45AD40
• Base-36: 6MDNKIC00

Squares and roots of 18680394394944

• 18680394394944 squared (18680394394944²) is 348957134750655211852763136
• 18680394394944 cubed (18680394394944³) is 6518656904071857742525857359133267984384
• The square root of 18680394394944 is 4322082.1828077263
• The cube root of 18680394394944 is 26533.5492468501

Scales and comparisons

• 18,680,394,394,944 seconds is equal to 593,978 years, 39 weeks, 3 days, 11 hours, 2 minutes, 24 seconds.
• To count from 1 to 18,680,394,394,944 would take you about one million, four hundred eighty-four thousand, nine hundred forty-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 18680394394944 cubic inches would be around 2211.1 feet tall.

Recreational maths with 18680394394944

• 18680394394944 backwards is 44949349308681
• 18680394394944 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18680394394944's digits is 72
• More coming soon!