138988780672

Names of 138988780672

• Cardinal: 138988780672 can be written as One hundred thirty-eight billion, nine hundred eighty-eight million, seven hundred eighty thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.38988780672 × 10¹¹

Factors of 138988780672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 85

Divisors of 138988780672

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 8 14 16 23 28 32 46 49 53 56 64 92 98 106 112 128 161 184 196 212 224 322 343 368 371 392 424 448 644 686 736 742 784 848 896 1127 1219 1288 1372 1472 1484 1568 1696 2254 2401 2438 2576 2597 2744 2809 2944 2968 3136 3392 4508 4802 4876 5152 5194 5488 5618 5936 6272 6784 7889 8533 9016 9604 9752 10304 10388 10976 11236 11872 15778 16807 17066 18032 18179 19208 19504 19663 20608 20776 21952 22472 23744 31556 33614 34132 36064 36358 38416 39008 39326 41552 43904 44944 47488 55223 59731 63112 64607 67228 68264 72128 72716 76832 78016 78652 83104 89888 110446 119462 126224 127253 129214 134456 136528 137641 144256 145432 153664 156032 157304 166208 179776 220892 238924 252448 254506 258428 268912 273056 275282 290864 307328 314608 332416 359552 386561 418117 441784 452249 477848 504896 509012 516856 537824 546112 550564 581728 629216 773122 836234 883568 890771 904498 955696 963487 1009792 1018024 1033712 1075648 1092224 1101128 1163456 1258432 1546244 1672468 1767136 1781542 1808996 1911392 1926974 2036048 2067424 2151296 2202256 2326912 2516864 2926819 3092488 3165743 3344936 3534272 3563084 3617992 3822784 3853948 4072096 4134848 4404512 5853638 6184976 6331486 6689872 6744409 7068544 7126168 7235984 7645568 7707896 8144192 8269696 8809024 11707276 12369952 12662972 13379744 13488818 14252336 14471968 15415792 16288384 17618048 20487733 22160201 23414552 24739904 25325944 26759488 26977636 28504672 28943936 30831584 40975466 44320402 46829104 47210863 49479808 50651888 53518976 53955272 57009344 57887872 61663168 81950932 88640804 93658208 94421726 101303776 107910544 114018688 123326336 155121407 163901864 177281608 187316416 188843452 202607552 215821088 310242814 327803728 354563216 374632832 377686904 405215104 431642176 620485628 655607456 709126432 755373808 863284352 1085849849 1240971256 1311214912 1418252864 1510747616 2171699698 2481942512 2622429824 2836505728 3021495232 4343399396 4963885024 6042990464 8686798792 9927770048 17373597584 19855540096 34747195168 69494390336 138988780672
• Sum of all divisors σ(n): 343562748480
• Sum of proper divisors (its aliquot sum) s(n): 204573967808
• 138988780672 is an abundant number, because the sum of its proper divisors (204573967808) is greater than itself. Its abundance is 65585187136

Bases of 138988780672

• Binary: 10000001011100011000000111110010000000₂
• Hexadecimal: 0x205C607C80
• Base-36: 1RUMBXJ4

Squares and roots of 138988780672

• 138988780672 squared (138988780672²) is 19317881152689320771584
• 138988780672 cubed (138988780672³) is 2684968746578898547678342386024448
• The square root of 138988780672 is 372811.9910517901
• The cube root of 138988780672 is 5179.9620937085

Scales and comparisons

• 138,988,780,672 seconds is equal to 4,419 years, 21 weeks, 3 days, 10 hours, 37 minutes, 52 seconds.
• To count from 1 to 138,988,780,672 would take you about eight thousand, eight hundred thirty-eight 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 138988780672 cubic inches would be around 431.7 feet tall.

Recreational maths with 138988780672

• 138988780672 backwards is 276087889831
• The number of decimal digits it has is: 12
• The sum of 138988780672's digits is 67
• More coming soon!