138787386608

Names of 138787386608

• Cardinal: 138787386608 can be written as One hundred thirty-eight billion, seven hundred eighty-seven million, three hundred eighty-six thousand, six hundred eight.

Scientific notation

• Scientific notation: 1.38787386608 × 10¹¹

Factors of 138787386608

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8288

Divisors of 138787386608

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 13 16 26 29 52 53 58 104 106 116 208 212 232 377 424 464 689 754 848 1378 1508 1537 2756 2809 3016 3074 5512 5618 6032 6148 8191 11024 11236 12296 16382 19981 22472 24592 32764 36517 39962 44944 65528 73034 79924 81461 106483 131056 146068 159848 162922 212966 237539 292136 319696 325844 425932 434123 475078 584272 651688 851864 868246 950156 1058993 1303376 1703728 1736492 1900312 2117986 3088007 3472984 3800624 4235972 5643599 6176014 6945968 8471944 11287198 12352028 12589567 16943888 22574396 23008519 24704056 25179134 45148792 46017038 49408112 50358268 90297584 92034076 100716536 163664371 184068152 201433072 299110747 327328742 368136304 598221494 654657484 667247051 1196442988 1309314968 1334494102 2392885976 2618629936 2668988204 4785771952 5337976408 8674211663 10675952816 17348423326 34696846652 69393693304 138787386608
• Sum of all divisors σ(n): 305367121920
• Sum of proper divisors (its aliquot sum) s(n): 166579735312
• 138787386608 is an abundant number, because the sum of its proper divisors (166579735312) is greater than itself. Its abundance is 27792348704

Bases of 138787386608

• Binary: 10000001010000010111110111010011110000₂
• Hexadecimal: 0x20505F74F0
• Base-36: 1RRAFCVK

Squares and roots of 138787386608

• 138787386608 squared (138787386608²) is 19261938681478457745664
• 138787386608 cubed (138787386608³) is 2673314130605940484171061703667712
• The square root of 138787386608 is 372541.7917603339
• The cube root of 138787386608 is 5177.4589710611

Scales and comparisons

• 138,787,386,608 seconds is equal to 4,413 years, 3 days, 11 hours, 50 minutes, 8 seconds.
• To count from 1 to 138,787,386,608 would take you about eight thousand, eight hundred twenty-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 138787386608 cubic inches would be around 431.5 feet tall.

Recreational maths with 138787386608

• 138787386608 backwards is 806683787831
• The number of decimal digits it has is: 12
• The sum of 138787386608's digits is 65
• More coming soon!