138231206646

Names of 138231206646

• Cardinal: 138231206646 can be written as One hundred thirty-eight billion, two hundred thirty-one million, two hundred six thousand, six hundred forty-six.

Scientific notation

• Scientific notation: 1.38231206646 × 10¹¹

Factors of 138231206646

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 682

Divisors of 138231206646

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 13 26 37 39 67 74 78 111 127 134 169 201 222 254 338 381 402 433 481 507 762 866 871 962 1014 1299 1443 1651 1742 2479 2598 2613 2886 3302 4699 4953 4958 5226 5629 6253 7437 8509 9398 9906 11258 11323 12506 14097 14874 16021 16887 17018 18759 21463 22646 25527 28194 29011 32042 32227 33774 33969 37518 42926 48063 51054 54991 58022 61087 64389 64454 67938 73177 87033 96126 96681 109982 110617 122174 128778 146354 164973 174066 183261 193362 208273 219531 221234 314833 329946 331851 366522 377143 416546 418951 439062 624819 629666 663702 714883 754286 794131 837902 944499 1073407 1131429 1249638 1256853 1429766 1438021 1588262 1888998 2034667 2144649 2146814 2262858 2382393 2513706 2707549 2876042 3220221 3684397 4069334 4092829 4289298 4314063 4764786 4902859 5415098 6104001 6440442 7368794 8122647 8185658 8628126 9293479 9805718 11053191 12208002 12278487 13954291 14708577 16245294 18586958 22106382 24556974 26450671 27880437 27908582 29417154 41862873 47897161 52901342 53206777 55760874 79352013 83725746 95794322 106413554 136322689 143691483 158704026 159620331 181405783 272645378 287382966 319240662 343858723 362811566 408968067 544217349 622663093 687717446 817936134 1031576169 1088434698 1245326186 1772194957 1867989279 2063152338 3544389914 3735978558 5316584871 10633169742 23038534441 46077068882 69115603323 138231206646
• Sum of all divisors σ(n): 315227824128
• Sum of proper divisors (its aliquot sum) s(n): 176996617482
• 138231206646 is an abundant number, because the sum of its proper divisors (176996617482) is greater than itself. Its abundance is 38765410836

Bases of 138231206646

• Binary: 10000000101111001110001101001011110110₂
• Hexadecimal: 0x202F38D2F6
• Base-36: 1RI3AHO6

Squares and roots of 138231206646

• 138231206646 squared (138231206646²) is 19107866490809154569316
• 138231206646 cubed (138231206646³) is 2641303441455219105019675126874136
• The square root of 138231206646 is 371794.5758695251
• The cube root of 138231206646 is 5170.5336200313

Scales and comparisons

• 138,231,206,646 seconds is equal to 4,395 years, 16 weeks, 6 days, 5 hours, 24 minutes, 6 seconds.
• To count from 1 to 138,231,206,646 would take you about eight thousand, seven hundred ninety 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 138231206646 cubic inches would be around 430.9 feet tall.

Recreational maths with 138231206646

• 138231206646 backwards is 646602132831
• The number of decimal digits it has is: 12
• The sum of 138231206646's digits is 42
• More coming soon!