138720697115

Names of 138720697115

• Cardinal: 138720697115 can be written as One hundred thirty-eight billion, seven hundred twenty million, six hundred ninety-seven thousand, one hundred fifteen.

Scientific notation

• Scientific notation: 1.38720697115 × 10¹¹

Factors of 138720697115

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4902

Divisors of 138720697115

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 7 11 13 35 49 55 65 77 91 143 245 385 455 539 637 715 1001 1033 2695 3185 3833 5005 5165 7007 7231 11363 13429 19165 26831 35035 36155 42163 49829 50617 56815 67145 79541 94003 134155 147719 187817 210815 249145 253085 295141 348803 397705 470015 548119 556787 658021 738595 939085 1034033 1475705 1744015 2065987 2441621 2740595 2783935 3290105 3836833 3959489 5170165 7238231 10329935 12208105 19184165 19797445 26857831 27716423 36191155 43554379 51473357 134289155 138582115 194014961 217771895 257366785 304880653 360313499 566206927 970074805 1524403265 1801567495 2134164571 2522194493 2831034635 3963448489 10670822855 12610972465 19817242445 27744139423 138720697115
• Sum of all divisors σ(n): 227776038336
• Sum of proper divisors (its aliquot sum) s(n): 89055341221
• 138720697115 is a deficient number, because the sum of its proper divisors (89055341221) is less than itself. Its deficiency is 49665355894

Bases of 138720697115

• Binary: 10000001001100011001011101101100011011₂
• Hexadecimal: 0x204C65DB1B
• Base-36: 1RQ6PYXN

Squares and roots of 138720697115

• 138720697115 squared (138720697115²) is 19243431808071569323225
• 138720697115 cubed (138720697115³) is 2669462275300652980329820759995875
• The square root of 138720697115 is 372452.2749494223
• The cube root of 138720697115 is 5176.6295550711

Scales and comparisons

• 138,720,697,115 seconds is equal to 4,410 years, 46 weeks, 1 day, 14 hours, 58 minutes, 35 seconds.
• To count from 1 to 138,720,697,115 would take you about eight thousand, eight hundred twenty-one 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 138720697115 cubic inches would be around 431.4 feet tall.

Recreational maths with 138720697115

• 138720697115 backwards is 511796027831
• The number of decimal digits it has is: 12
• The sum of 138720697115's digits is 50
• More coming soon!