138909872027910008

Names of 138909872027910008

• Cardinal: 138909872027910008 can be written as One hundred thirty-eight quadrillion, nine hundred nine trillion, eight hundred seventy-two billion, twenty-seven million, nine hundred ten thousand and eight.

Scientific notation

• Scientific notation: 1.38909872027910008 × 10¹⁷

Factors of 138909872027910008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 108992

Divisors of 138909872027910008

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 449 898 1796 3592 19531 39062 43691 45319 78124 87382 90638 156248 174764 181276 349528 362552 8769419 17538838 19617259 20348231 35077676 39234518 40696462 70155352 78469036 81392924 156938072 162785848 853328921 885125389 1706657842 1770250778 1980032429 3413315684 3540501556 3960064858 6826631368 7081003112 7920129716 15840259432 383144685529 397421299661 766289371058 794842599322 889034560621 1532578742116 1589685198644 1778069121242 3065157484232 3179370397288 3556138242484 7112276484968 38672013370799 77344026741598 154688053483196 309376106966392 17363734003488751 34727468006977502 69454936013955004 138909872027910008
• Sum of all divisors σ(n): 261061190771040000
• Sum of proper divisors (its aliquot sum) s(n): 122151318743129992
• 138909872027910008 is a deficient number, because the sum of its proper divisors (122151318743129992) is less than itself. Its deficiency is 16758553284780016

Bases of 138909872027910008

• Binary: 111101101100000011100101011101010000001001011111101111000₂
• Hexadecimal: 0x1ED81CAEA04BF78
• Base-36: 11ZRFU8QT01K

Squares and roots of 138909872027910008

• 138909872027910008 squared (138909872027910008²) is 19295952546810335278376920546560064
• 138909872027910008 cubed (138909872027910008³) is 2680398298934047871745519232979010610021663758720512
• The square root of 138909872027910008 is 372706147.0218998253
• The cube root of 138909872027910008 is 517898.1628090443

Scales and comparisons

• 138,909,872,027,910,008 seconds is equal to 4,416,904,254 years, 2 weeks, 1 day, 4 hours, 20 minutes, 8 seconds.
• To count from 1 to 138,909,872,027,910,008 would take you about thirteen billion, two hundred fifty million, seven hundred twelve thousand, seven hundred sixty-two 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 138909872027910008 cubic inches would be around 43158.2 feet tall.

Recreational maths with 138909872027910008

• 138909872027910008 backwards is 800019720278909831
• The number of decimal digits it has is: 18
• The sum of 138909872027910008's digits is 74
• More coming soon!