138508865649

Names of 138508865649

• Cardinal: 138508865649 can be written as One hundred thirty-eight billion, five hundred eight million, eight hundred sixty-five thousand, six hundred forty-nine.

Scientific notation

• Scientific notation: 1.38508865649 × 10¹¹

Factors of 138508865649

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 507

Divisors of 138508865649

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 21 27 29 33 63 77 87 99 121 189 203 231 261 297 319 363 457 609 693 783 847 957 1089 1371 1827 2079 2233 2541 2871 3199 3267 3509 4113 5027 5481 6699 7623 8613 9597 10527 12339 13253 15081 20097 22869 24563 28791 31581 35189 39759 45243 55297 60291 73689 86373 92771 94743 105567 119277 135729 145783 165891 208849 221067 278313 316701 357831 387079 437349 497673 626547 663201 834939 950103 1020481 1161237 1312047 1461943 1493019 1603613 1879641 2297339 2504817 3061443 3483711 3936141 4385829 4810839 5638923 6056621 6892017 9184329 10451133 11225291 13157487 14432517 16081373 18169863 20676051 25270729 27552987 33675873 39472461 42396347 43297551 48244119 54509589 62028153 66622831 75812187 101027619 127189041 144732357 163528767 176895103 199868493 227436561 303082857 381567123 434197071 466359817 530685309 599605479 682309683 732851141 1144701369 1399079451 1592055927 1798816437 2198553423 4197238353 4776167781 5129957987 6595660269 12591715059 15389873961 19786980807 46169621883 138508865649
• Sum of all divisors σ(n): 267243177600
• Sum of proper divisors (its aliquot sum) s(n): 128734311951
• 138508865649 is a deficient number, because the sum of its proper divisors (128734311951) is less than itself. Its deficiency is 9774553698

Bases of 138508865649

• Binary: 10000000111111110001011001000001110001₂
• Hexadecimal: 0x203FC59071
• Base-36: 1RMOLOQ9

Squares and roots of 138508865649

• 138508865649 squared (138508865649²) is 19184705863372732191201
• 138508865649 cubed (138508865649³) is 2657251846945476313081116688954449
• The square root of 138508865649 is 372167.7923316309
• The cube root of 138508865649 is 5173.9932465431

Scales and comparisons

• 138,508,865,649 seconds is equal to 4,404 years, 7 weeks, 6 days, 20 hours, 54 minutes, 9 seconds.
• To count from 1 to 138,508,865,649 would take you about eight thousand, eight hundred 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 138508865649 cubic inches would be around 431.2 feet tall.

Recreational maths with 138508865649

• 138508865649 backwards is 946568805831
• 138508865649 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138508865649's digits is 63
• More coming soon!