138817200912491672

Names of 138817200912491672

• Cardinal: 138817200912491672 can be written as One hundred thirty-eight quadrillion, eight hundred seventeen trillion, two hundred billion, nine hundred twelve million, four hundred ninety-one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.38817200912491672 × 10¹⁷

Factors of 138817200912491672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 205174319

Divisors of 138817200912491672

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 8 271 542 1084 2168 312553 625106 1250212 2500424 84701863 169403726 204861493 338807452 409722986 677614904 819445972 1638891944 55517464603 111034929206 222069858412 444139716824 64030074221629 128060148443258 256120296886516 512240593773032 17352150114061459 34704300228122918 69408600456245836 138817200912491672
• Sum of all divisors σ(n): 261243539934358080
• Sum of proper divisors (its aliquot sum) s(n): 122426339021866408
• 138817200912491672 is a deficient number, because the sum of its proper divisors (122426339021866408) is less than itself. Its deficiency is 16390861890625264

Bases of 138817200912491672

• Binary: 111101101001011011000001000111101000110100110010010011000₂
• Hexadecimal: 0x1ED2D823D1A6498
• Base-36: 11YUL9PXDS48

Squares and roots of 138817200912491672

• 138817200912491672 squared (138817200912491672²) is 19270215269179078693357851469355584
• 138817200912491672 cubed (138817200912491672³) is 2675037344648596953564743123313509156844733606696448
• The square root of 138817200912491672 is 372581804.3228784299
• The cube root of 138817200912491672 is 517782.9685071865

Scales and comparisons

• 138,817,200,912,491,672 seconds is equal to 4,413,957,599 years, 11 weeks, 3 days, 19 hours, 14 minutes, 32 seconds.
• To count from 1 to 138,817,200,912,491,672 would take you about thirteen billion, two hundred forty-one million, eight hundred seventy-two thousand, seven hundred ninety-seven 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 138817200912491672 cubic inches would be around 43148.6 feet tall.

Recreational maths with 138817200912491672

• 138817200912491672 backwards is 276194219002718831
• The number of decimal digits it has is: 18
• The sum of 138817200912491672's digits is 71
• More coming soon!