138947537817

Names of 138947537817

• Cardinal: 138947537817 can be written as One hundred thirty-eight billion, nine hundred forty-seven million, five hundred thirty-seven thousand, eight hundred seventeen.

Scientific notation

• Scientific notation: 1.38947537817 × 10¹¹

Factors of 138947537817

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2068

Divisors of 138947537817

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 33 41 73 99 123 219 283 369 451 657 803 849 1353 1657 2409 2547 2993 3113 4059 4971 7227 8979 9339 11603 14913 18227 20659 26937 28017 32923 34809 54681 61977 67937 98769 104427 120961 127633 164043 185931 203811 227249 296307 362883 382899 468931 611433 681747 747307 847019 1088649 1148697 1330571 1406793 2045241 2241921 2541057 3991713 4220379 4959401 5158241 6725763 7623171 9317209 11975139 14878203 15474723 19226171 27951627 34231963 44634609 46424169 54553411 57678513 83854881 102695889 163660233 173035539 211487881 308087667 376551593 490980699 634463643 1129654779 1403510483 1903390929 3388964337 4210531449 12631594347 15438615313 46315845939 138947537817
• Sum of all divisors σ(n): 228301347456
• Sum of proper divisors (its aliquot sum) s(n): 89353809639
• 138947537817 is a deficient number, because the sum of its proper divisors (89353809639) is less than itself. Its deficiency is 49593728178

Bases of 138947537817

• Binary: 10000001011001111010110010101110011001₂
• Hexadecimal: 0x2059EB2B99
• Base-36: 1RTXRYC9

Squares and roots of 138947537817

• 138947537817 squared (138947537817²) is 19306418265406645125489
• 138947537817 cubed (138947537817³) is 2682579282043409366456981538117513
• The square root of 138947537817 is 372756.6737390493
• The cube root of 138947537817 is 5179.4496840997

Scales and comparisons

• 138,947,537,817 seconds is equal to 4,418 years, 5 weeks, 2 days, 2 hours, 16 minutes, 57 seconds.
• To count from 1 to 138,947,537,817 would take you about eight thousand, eight hundred thirty-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 138947537817 cubic inches would be around 431.6 feet tall.

Recreational maths with 138947537817

• 138947537817 backwards is 718735749831
• The number of decimal digits it has is: 12
• The sum of 138947537817's digits is 63
• More coming soon!