138917867170037761

Names of 138917867170037761

• Cardinal: 138917867170037761 can be written as One hundred thirty-eight quadrillion, nine hundred seventeen trillion, eight hundred sixty-seven billion, one hundred seventy million, thirty-seven thousand, seven hundred sixty-one.

Scientific notation

• Scientific notation: 1.38917867170037761 × 10¹⁷

Factors of 138917867170037761

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 603962771

Divisors of 138917867170037761

• Number of divisors d(n): 8
• Complete list of divisors:
  1 13 18244241 237175133 585718517 7614340721 10685989782310597 138917867170037761
• Sum of all divisors σ(n): 149603865407826984
• Sum of proper divisors (its aliquot sum) s(n): 10685998237789223
• 138917867170037761 is a deficient number, because the sum of its proper divisors (10685998237789223) is less than itself. Its deficiency is 128231868932248538

Bases of 138917867170037761

• Binary: 111101101100010010001000001101101101000000000000000000001₂
• Hexadecimal: 0x1ED89106DA00001
• Base-36: 11ZU9V5S0001

Squares and roots of 138917867170037761

• 138917867170037761 squared (138917867170037761²) is 19298173819072255164064414165893121
• 138917867170037761 cubed (138917867170037761³) is 2680861147222179873855428831848657163838055860142081
• The square root of 138917867170037761 is 372716872.6661536059
• The cube root of 138917867170037761 is 517908.0987238953

Scales and comparisons

• 138,917,867,170,037,761 seconds is equal to 4,417,158,474 years, 43 weeks, 1 day, 9 hours, 36 minutes, 1 second.
• To count from 1 to 138,917,867,170,037,761 would take you about thirteen billion, two hundred fifty-one million, four hundred seventy-five thousand, four hundred twenty-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 138917867170037761 cubic inches would be around 43159 feet tall.

Recreational maths with 138917867170037761

• 138917867170037761 backwards is 167730071768719831
• The number of decimal digits it has is: 18
• The sum of 138917867170037761's digits is 82
• More coming soon!