12938690918434431

Names of 12938690918434431

• Cardinal: 12938690918434431 can be written as Twelve quadrillion, nine hundred thirty-eight trillion, six hundred ninety billion, nine hundred eighteen million, four hundred thirty-four thousand, four hundred thirty-one.

Scientific notation

• Scientific notation: 1.2938690918434431 × 10¹⁶

Factors of 12938690918434431

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 3767258

Divisors of 12938690918434431

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 4049 12147 308309 924927 3454897 10364691 1248343141 3745029423 13988877953 41966633859 1065175839173 3195527517519 4312896972811477 12938690918434431
• Sum of all divisors σ(n): 17255909558556000
• Sum of proper divisors (its aliquot sum) s(n): 4317218640121569
• 12938690918434431 is a deficient number, because the sum of its proper divisors (4317218640121569) is less than itself. Its deficiency is 8621472278312862

Bases of 12938690918434431

• Binary: 101101111101111010101110111100000011010100011001111111₂
• Hexadecimal: 0x2DF7ABBC0D467F
• Base-36: 3JEDSJTQHZ3

Squares and roots of 12938690918434431

• 12938690918434431 squared (12938690918434431²) is 167409722682777619592584046293761
• 12938690918434431 cubed (12938690918434431³) is 2166062658533281354871027823990002890578042884991
• The square root of 12938690918434431 is 113748366.6627105069
• The cube root of 12938690918434431 is 234763.2498325153

Scales and comparisons

• 12,938,690,918,434,431 seconds is equal to 411,410,349 years, 10 weeks, 5 days, 12 hours, 13 minutes, 51 seconds.
• To count from 1 to 12,938,690,918,434,431 would take you about one billion, two hundred thirty-four million, two hundred thirty-one thousand and forty-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 12938690918434431 cubic inches would be around 19563.6 feet tall.

Recreational maths with 12938690918434431

• 12938690918434431 backwards is 13443481909683921
• The number of decimal digits it has is: 17
• The sum of 12938690918434431's digits is 75
• More coming soon!