138139137364242746944

Names of 138139137364242746944

• Cardinal: 138139137364242746944 can be written as One hundred thirty-eight quintillion, one hundred thirty-nine quadrillion, one hundred thirty-seven trillion, three hundred sixty-four billion, two hundred forty-two million, seven hundred forty-six thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.38139137364242746944 × 10²⁰

Factors of 138139137364242746944

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 712152

Divisors of 138139137364242746944

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 4 8 16 32 64 2069 4138 8276 16552 33104 66208 132416 710081 1420162 2840324 5680648 11361296 22722592 45445184 1469157589 2938315178 5876630356 11753260712 23506521424 47013042848 94026085696 504215026561 1008430053122 2016860106244 4033720212488 8067440424976 16134880849952 32269761699904 1043220889954709 2086441779909418 4172883559818836 8345767119637672 16691534239275344 33383068478550688 66766136957101376
• Sum of all divisors σ(n): 138204924502291723838
• Sum of proper divisors (its aliquot sum) s(n): 65787138048976894
• 138139137364242746944 is a deficient number, because the sum of its proper divisors (65787138048976894) is less than itself. Its deficiency is 138073350226193770050

Bases of 138139137364242746944

• Binary: 1110111110100010000110011011000101001001110100101000100111001000000₂
• Hexadecimal: 0x77D10CD8A4E944E40
• Base-36: T5IL9D6F1EO1S

Squares and roots of 138139137364242746944

• 138139137364242746944 squared (138139137364242746944²) is 19082421271737126575379873357310821339136
• 138139137364242746944 cubed (138139137364242746944³) is 2636029213298842698342890007233998052507164555015709251600384
• 138139137364242746944 is a perfect square number. Its square root is 11753260712
• The cube root of 138139137364242746944 is 5169385.4156129537

Scales and comparisons

• 138,139,137,364,242,746,944 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,139,137,364,242,746,944 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 138139137364242746944 cubic inches would be around 430782.1 feet tall.

Recreational maths with 138139137364242746944

• 138139137364242746944 backwards is 449647242463731931831
• The number of decimal digits it has is: 21
• The sum of 138139137364242746944's digits is 91
• More coming soon!