138289793771084447742

Names of 138289793771084447742

• Cardinal: 138289793771084447742 can be written as One hundred thirty-eight quintillion, two hundred eighty-nine quadrillion, seven hundred ninety-three trillion, seven hundred seventy-one billion, eighty-four million, four hundred forty-seven thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 1.38289793771084447742 × 10²⁰

Factors of 138289793771084447742

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 154686570213741147

Divisors of 138289793771084447742

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 149 298 447 894 154686570213740993 309373140427481986 464059710641222979 928119421282445958 23048298961847407957 46096597923694815914 69144896885542223871 138289793771084447742
• Sum of all divisors σ(n): 278435826384733789200
• Sum of proper divisors (its aliquot sum) s(n): 140146032613649341458
• 138289793771084447742 is an abundant number, because the sum of its proper divisors (140146032613649341458) is greater than itself. Its abundance is 1856238842564893716

Bases of 138289793771084447742

• Binary: 1110111111100101000000010101011111001111011100000111111111111111110₂
• Hexadecimal: 0x77F280ABE7B83FFFE
• Base-36: T6NSOLS99SWE6

Squares and roots of 138289793771084447742

• 138289793771084447742 squared (138289793771084447742²) is 19124067061249066922092220361585128898564
• 138289793771084447742 cubed (138289793771084447742³) is 2644663289964522474603489937048272103968170225721106676842488
• The square root of 138289793771084447742 is 11759668097.8284607257
• The cube root of 138289793771084447742 is 5171263.9999999989

Scales and comparisons

• 138,289,793,771,084,447,742 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,289,793,771,084,447,742 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 138289793771084447742 cubic inches would be around 430938.7 feet tall.

Recreational maths with 138289793771084447742

• 138289793771084447742 backwards is 247744480177397982831
• The number of decimal digits it has is: 21
• The sum of 138289793771084447742's digits is 105
• More coming soon!