138995838342878

Names of 138995838342878

• Cardinal: 138995838342878 can be written as One hundred thirty-eight trillion, nine hundred ninety-five billion, eight hundred thirty-eight million, three hundred forty-two thousand, eight hundred seventy-eight.

Scientific notation

• Scientific notation: 1.38995838342878 × 10¹⁴

Factors of 138995838342878

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1846

Divisors of 138995838342878

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 11 22 31 62 79 121 158 242 341 682 869 1723 1738 2449 3446 3751 4898 6241 7502 9559 12482 18953 19118 26939 37906 53413 53878 68651 106826 136117 137302 193471 208483 272234 296329 386942 416966 587543 592658 755161 1175086 1497287 1510322 2128181 2968729 2994574 4219627 4256362 5937458 6462973 8439254 10753243 12925946 16470157 21506486 23409991 32656019 32940314 46415897 46819982 65312038 92030599 92831794 118285673 184061198 234529591 236571346 333350533 359216209 469059182 510574867 666701066 718432418 1012336589 1021149734 1301142403 2024673178 2579825501 2602284806 3666855863 5159651002 7270417321 7333711726 11135702479 14540834642 18527837689 22271404958 28378080511 37055675378 40335414493 56756161022 79974590531 80670828986 159949181062 203806214579 407612429158 574362968359 879720495841 1148725936718 1759440991682 2241868360369 4483736720738 6317992651949 12635985303898 69497919171439 138995838342878
• Sum of all divisors σ(n): 239734948217184
• Sum of proper divisors (its aliquot sum) s(n): 100739109874306
• 138995838342878 is a deficient number, because the sum of its proper divisors (100739109874306) is less than itself. Its deficiency is 38256728468572

Bases of 138995838342878

• Binary: 11111100110101001111101100100011101011011011110₂
• Hexadecimal: 0x7E6A7D91D6DE
• Base-36: 1D9PT1DSKE

Squares and roots of 138995838342878

• 138995838342878 squared (138995838342878²) is 19319843076639474001093322884
• 138995838342878 cubed (138995838342878³) is 2685377785090351067093168897013033155820152
• The square root of 138995838342878 is 11789649.6276555225
• The cube root of 138995838342878 is 51800.4976948745

Scales and comparisons

• 138,995,838,342,878 seconds is equal to 4,419,637 years, 37 weeks, 1 day, 23 hours, 14 minutes, 38 seconds.
• To count from 1 to 138,995,838,342,878 would take you about eleven million, forty-nine thousand and ninety-four 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 138995838342878 cubic inches would be around 4316.7 feet tall.

Recreational maths with 138995838342878

• 138995838342878 backwards is 878243838599831
• The number of decimal digits it has is: 15
• The sum of 138995838342878's digits is 86
• More coming soon!