138391972128732

Names of 138391972128732

• Cardinal: 138391972128732 can be written as One hundred thirty-eight trillion, three hundred ninety-one billion, nine hundred seventy-two million, one hundred twenty-eight thousand, seven hundred thirty-two.

Scientific notation

• Scientific notation: 1.38391972128732 × 10¹⁴

Factors of 138391972128732

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11044809

Divisors of 138391972128732

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 84 241 482 619 723 964 1238 1446 1687 1857 2476 2892 3374 3714 4333 5061 6748 7428 8666 10122 12999 17332 20244 25998 51996 149179 298358 447537 596716 895074 1044253 1790148 2088506 3132759 4177012 6265518 11043937 12531036 22087874 33131811 44175748 66263622 77307559 132527244 154615118 231922677 309230236 463845354 927690708 2661588817 5323177634 6836197003 7984766451 10646355268 13672394006 15969532902 18631121719 20508591009 27344788012 31939065804 37262243438 41017182018 47853379021 55893365157 74524486876 82034364036 95706758042 111786730314 143560137063 191413516084 223573460628 287120274126 574240548252 1647523477723 3295046955446 4942570433169 6590093910892 9885140866338 11532664344061 19770281732676 23065328688122 34597993032183 46130657376244 69195986064366 138391972128732
• Sum of all divisors σ(n): 371175270484480
• Sum of proper divisors (its aliquot sum) s(n): 232783298355748
• 138391972128732 is an abundant number, because the sum of its proper divisors (232783298355748) is greater than itself. Its abundance is 94391326227016

Bases of 138391972128732

• Binary: 11111011101110111100100010101101010011111011100₂
• Hexadecimal: 0x7DDDE456A7DC
• Base-36: 1D20E713OC

Squares and roots of 138391972128732

• 138391972128732 squared (138391972128732²) is 19152337949679734695579927824
• 138391972128732 cubed (138391972128732³) is 2650529819732134021896297502012424196639168
• The square root of 138391972128732 is 11764011.7361694263
• The cube root of 138391972128732 is 51725.3731927097

Scales and comparisons

• 138,391,972,128,732 seconds is equal to 4,400,436 years, 33 weeks, 1 day, 16 hours, 12 minutes, 12 seconds.
• To count from 1 to 138,391,972,128,732 would take you about eleven million, one thousand and ninety-one 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 138391972128732 cubic inches would be around 4310.4 feet tall.

Recreational maths with 138391972128732

• 138391972128732 backwards is 237821279193831
• The number of decimal digits it has is: 15
• The sum of 138391972128732's digits is 66
• More coming soon!