138805055722805472001

Names of 138805055722805472001

• Cardinal: 138805055722805472001 can be written as One hundred thirty-eight quintillion, eight hundred five quadrillion, fifty-five trillion, seven hundred twenty-two billion, eight hundred five million, four hundred seventy-two thousand and one.

Scientific notation

• Scientific notation: 1.38805055722805472001 × 10²⁰

Factors of 138805055722805472001

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 176755751

Divisors of 138805055722805472001

• Number of divisors d(n): 8
• Complete list of divisors:
  1 43291 20529263 156183197 888732324533 6761326781327 3206325927393811 138805055722805472001
• Sum of all divisors σ(n): 138808269698968727424
• Sum of proper divisors (its aliquot sum) s(n): 3213976163255423
• 138805055722805472001 is a deficient number, because the sum of its proper divisors (3213976163255423) is less than itself. Its deficiency is 138801841746642216578

Bases of 138805055722805472001

• Binary: 1111000011001001110100111101100001001011010000111110010101100000001₂
• Hexadecimal: 0x7864E9EC25A1F2B01
• Base-36: TAKQ5Q1335C01

Squares and roots of 138805055722805472001

• 138805055722805472001 squared (138805055722805472001²) is 19266843494211132113247280464588394944001
• 138805055722805472001 cubed (138805055722805472001³) is 2674335284816548280394228451751886853600222098740644768416001
• The square root of 138805055722805472001 is 11781555742.8891992659
• The cube root of 138805055722805472001 is 5177678.6769899373

Scales and comparisons

• 138,805,055,722,805,472,001 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,805,055,722,805,472,001 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 138805055722805472001 cubic inches would be around 431473.2 feet tall.

Recreational maths with 138805055722805472001

• 138805055722805472001 backwards is 100274508227550508831
• The number of decimal digits it has is: 21
• The sum of 138805055722805472001's digits is 73
• More coming soon!