138806868990208

Names of 138806868990208

• Cardinal: 138806868990208 can be written as One hundred thirty-eight trillion, eight hundred six billion, eight hundred sixty-eight million, nine hundred ninety thousand, two hundred eight.

Scientific notation

• Scientific notation: 1.38806868990208 × 10¹⁴

Factors of 138806868990208

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4362577

Divisors of 138806868990208

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 31 32 62 64 124 128 248 256 496 992 1984 3968 4013 7936 8026 16052 32104 64208 124403 128416 248806 256832 497612 513664 995224 1027328 1990448 3980896 4358531 7961792 8717062 15923584 17434124 31847168 34868248 69736496 135114461 139472992 270228922 278945984 540457844 557891968 1080915688 1115783936 2161831376 4323662752 8647325504 17294651008 17490784903 34589302016 34981569806 69963139612 139926279224 279852558448 542214331993 559705116896 1084428663986 1119410233792 2168857327972 2238820467584 4337714655944 4477640935168 8675429311888 17350858623776 34701717247552 69403434495104 138806868990208
• Sum of all divisors σ(n): 286080651069696
• Sum of proper divisors (its aliquot sum) s(n): 147273782079488
• 138806868990208 is an abundant number, because the sum of its proper divisors (147273782079488) is greater than itself. Its abundance is 8466913089280

Bases of 138806868990208

• Binary: 11111100011111001111110000111100101100100000000₂
• Hexadecimal: 0x7E3E7E1E5900
• Base-36: 1D7AZTWQV4

Squares and roots of 138806868990208

• 138806868990208 squared (138806868990208²) is 19267346878864767277599883264
• 138806868990208 cubed (138806868990208³) is 2674440094003474759579449829459082359078912
• The square root of 138806868990208 is 11781632.6962865381
• The cube root of 138806868990208 is 51777.0122293885

Scales and comparisons

• 138,806,868,990,208 seconds is equal to 4,413,629 years, 3 weeks, 6 days, 16 hours, 23 minutes, 28 seconds.
• To count from 1 to 138,806,868,990,208 would take you about eleven million, thirty-four thousand and seventy-two 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 138806868990208 cubic inches would be around 4314.8 feet tall.

Recreational maths with 138806868990208

• 138806868990208 backwards is 802099868608831
• The number of decimal digits it has is: 15
• The sum of 138806868990208's digits is 76
• More coming soon!