138721351924547715

Names of 138721351924547715

• Cardinal: 138721351924547715 can be written as One hundred thirty-eight quadrillion, seven hundred twenty-one trillion, three hundred fifty-one billion, nine hundred twenty-four million, five hundred forty-seven thousand, seven hundred fifteen.

Scientific notation

• Scientific notation: 1.38721351924547715 × 10¹⁷

Factors of 138721351924547715

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8040660

Divisors of 138721351924547715

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 17 51 85 101 255 303 505 1515 1717 5151 8585 25755 737531 2212593 3687655 7303003 11062965 12538027 21909009 36515015 37614081 62690135 74490631 109545045 124151051 188070405 223471893 372453153 372453155 620755255 737603303 1117359465 1266340727 1862265765 2212809909 3688016515 3799022181 6331703635 11064049545 12539256151 18995110905 37617768453 62696280755 188088842265 5386191105593 16158573316779 26930955527965 80792866583895 91565248795081 274695746385243 457826243975405 544005301664893 1373478731926215 1632015904994679 2720026508324465 8160079524973395 9248090128303181 27744270384909543 46240450641515905 138721351924547715
• Sum of all divisors σ(n): 237337479174984192
• Sum of proper divisors (its aliquot sum) s(n): 98616127250436477
• 138721351924547715 is a deficient number, because the sum of its proper divisors (98616127250436477) is less than itself. Its deficiency is 40105224674111238

Bases of 138721351924547715

• Binary: 111101100110101100101010110101000001110011000000010000011₂
• Hexadecimal: 0x1ECD655A8398083
• Base-36: 11XWM5AWPI83

Squares and roots of 138721351924547715

• 138721351924547715 squared (138721351924547715²) is 19243613479774218032314407311721225
• 138721351924547715 cubed (138721351924547715³) is 2669500077827729571479668236734327909006126290750875
• The square root of 138721351924547715 is 372453153.9999999987
• The cube root of 138721351924547715 is 517663.7700217261

Scales and comparisons

• 138,721,351,924,547,715 seconds is equal to 4,410,909,897 years, 46 weeks, 9 hours, 55 minutes, 15 seconds.
• To count from 1 to 138,721,351,924,547,715 would take you about thirteen billion, two hundred thirty-two million, seven hundred twenty-nine thousand, six hundred ninety-three 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 138721351924547715 cubic inches would be around 43138.6 feet tall.

Recreational maths with 138721351924547715

• 138721351924547715 backwards is 517745429153127831
• The number of decimal digits it has is: 18
• The sum of 138721351924547715's digits is 75
• More coming soon!