138123165874685540843

Names of 138123165874685540843

• Cardinal: 138123165874685540843 can be written as One hundred thirty-eight quintillion, one hundred twenty-three quadrillion, one hundred sixty-five trillion, eight hundred seventy-four billion, six hundred eighty-five million, five hundred forty thousand, eight hundred forty-three.

Scientific notation

• Scientific notation: 1.38123165874685540843 × 10²⁰

Factors of 138123165874685540843

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1760465585866

Divisors of 138123165874685540843

• Number of divisors d(n): 16
• Complete list of divisors:
  1 7 827 5789 13553 94871 11208331 78458317 1760465571479 12323259000353 1455905027613133 10191335193291931 23859589890254887 167017129231784209 19731880839240791549 138123165874685540843
• Sum of all divisors σ(n): 158057584757083630080
• Sum of proper divisors (its aliquot sum) s(n): 19934418882398089237
• 138123165874685540843 is a deficient number, because the sum of its proper divisors (19934418882398089237) is less than itself. Its deficiency is 118188746992287451606

Bases of 138123165874685540843

• Binary: 1110111110011011000000011111000111000011100111111001111100111101011₂
• Hexadecimal: 0x77CD80F8E1CFCF9EB
• Base-36: T5E7ZY1EMOQGB

Squares and roots of 138123165874685540843

• 138123165874685540843 squared (138123165874685540843²) is 19078008951245896327018651549811421150649
• 138123165874685540843 cubed (138123165874685540843³) is 2635114994931672471677803213574725067070944747898869945457107
• The square root of 138123165874685540843 is 11752581243.0582899945
• The cube root of 138123165874685540843 is 5169186.1817851361

Scales and comparisons

• 138,123,165,874,685,540,843 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,123,165,874,685,540,843 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 138123165874685540843 cubic inches would be around 430765.5 feet tall.

Recreational maths with 138123165874685540843

• 138123165874685540843 backwards is 348045586478561321831
• The number of decimal digits it has is: 21
• The sum of 138123165874685540843's digits is 92
• More coming soon!