138913012660

Names of 138913012660

• Cardinal: 138913012660 can be written as One hundred thirty-eight billion, nine hundred thirteen million, twelve thousand, six hundred sixty.

Scientific notation

• Scientific notation: 1.3891301266 × 10¹¹

Factors of 138913012660

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4895

Divisors of 138913012660

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 41 82 164 191 199 205 382 398 410 764 796 820 955 995 1910 1990 3820 3980 4457 7831 8159 8914 15662 16318 17828 22285 31324 32636 38009 39155 40795 44570 76018 78310 81590 89140 152036 156620 163180 182737 190045 365474 380090 730948 760180 851287 886943 913685 1558369 1702574 1773886 1827370 3116738 3405148 3547772 3654740 4256435 4434715 6233476 7791845 8512870 8869430 15583690 17025740 17738860 31167380 34902767 36364663 69805534 72729326 139611068 145458652 169406113 174513835 181823315 338812226 349027670 363646630 677624452 698055340 727293260 847030565 1694061130 3388122260 6945650633 13891301266 27782602532 34728253165 69456506330 138913012660
• Sum of all divisors σ(n): 301974220800
• Sum of proper divisors (its aliquot sum) s(n): 163061208140
• 138913012660 is an abundant number, because the sum of its proper divisors (163061208140) is greater than itself. Its abundance is 24148195480

Bases of 138913012660

• Binary: 10000001010111110111000101101110110100₂
• Hexadecimal: 0x2057DC5BB4
• Base-36: 1RTD7YK4

Squares and roots of 138913012660

• 138913012660 squared (138913012660²) is 19296825086277320275600
• 138913012660 cubed (138913012660³) is 2680580107507846983715297489096000
• The square root of 138913012660 is 372710.3602799365
• The cube root of 138913012660 is 5179.0206585617

Scales and comparisons

• 138,913,012,660 seconds is equal to 4,417 years, 1 day, 11 hours, 57 minutes, 40 seconds.
• To count from 1 to 138,913,012,660 would take you about eight thousand, eight hundred thirty-four 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 138913012660 cubic inches would be around 431.6 feet tall.

Recreational maths with 138913012660

• 138913012660 backwards is 066210319831
• The number of decimal digits it has is: 12
• The sum of 138913012660's digits is 40
• More coming soon!