138638507613519373543

Names of 138638507613519373543

• Cardinal: 138638507613519373543 can be written as One hundred thirty-eight quintillion, six hundred thirty-eight quadrillion, five hundred seven trillion, six hundred thirteen billion, five hundred nineteen million, three hundred seventy-three thousand, five hundred forty-three.

Scientific notation

• Scientific notation: 1.38638507613519373543 × 10²⁰

Factors of 138638507613519373543

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 23432

Divisors of 138638507613519373543

• Number of divisors d(n): 12
• Complete list of divisors:
  1 223 23209 49729 5175607 11089567 538657681 1154160361 120120662863 257377760503 26786907818449 5973480443514127
• Sum of all divisors σ(n): 138638534779634771736
• Sum of proper divisors (its aliquot sum) s(n): 27166115398193
• 138638507613519373543 is a deficient number, because the sum of its proper divisors (27166115398193) is less than itself. Its deficiency is 138638480447403975350

Bases of 138638507613519373543

• Binary: 1111000001111111110111011000010001011011110000111000110010011100111₂
• Hexadecimal: 0x783FEEC22DE1C64E7
• Base-36: T9B69CFXEYFHJ

Squares and roots of 138638507613519373543

• 138638507613519373543 squared (138638507613519373543²) is 19220635793303869303559662314595168372849
• 138638507613519373543 cubed (138638507613519373543³) is 2664720261766641468574594098077510175800457782207925130134007
• The square root of 138638507613519373543 is 11774485450.0534066245
• 138638507613519373543 is a perfect cube number. Its cube root is 5175607

Scales and comparisons

• 138,638,507,613,519,373,543 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,638,507,613,519,373,543 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 138638507613519373543 cubic inches would be around 431300.6 feet tall.

Recreational maths with 138638507613519373543

• 138638507613519373543 backwards is 345373915316705836831
• The number of decimal digits it has is: 21
• The sum of 138638507613519373543's digits is 91
• More coming soon!