138625928557

Names of 138625928557

• Cardinal: 138625928557 can be written as One hundred thirty-eight billion, six hundred twenty-five million, nine hundred twenty-eight thousand, five hundred fifty-seven.

Scientific notation

• Scientific notation: 1.38625928557 × 10¹¹

Factors of 138625928557

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1058

Divisors of 138625928557

• Number of divisors d(n): 64
• Complete list of divisors:
  1 19 29 31 71 151 551 589 757 899 1349 2059 2201 2869 4379 4681 10721 14383 17081 21953 23467 39121 41819 53747 63829 83201 88939 114307 135749 203699 310909 332351 417107 445873 680543 1021193 1212751 1558663 1666157 2171833 2579231 3314903 3543517 5907271 6314669 8115797 9638179 12930317 29614597 31656983 48318553 62983157 67326823 102761993 154200143 183125401 235358113 251589707 918052507 1952477867 4471804147 4780204433 7296101503 138625928557
• Sum of all divisors σ(n): 159274598400
• Sum of proper divisors (its aliquot sum) s(n): 20648669843
• 138625928557 is a deficient number, because the sum of its proper divisors (20648669843) is less than itself. Its deficiency is 117977258714

Bases of 138625928557

• Binary: 10000001000110101111111100110101101101₂
• Hexadecimal: 0x2046BFCD6D
• Base-36: 1ROMAR1P

Squares and roots of 138625928557

• 138625928557 squared (138625928557²) is 19217148068290468102249
• 138625928557 cubed (138625928557³) is 2663994995184124988266457245024693
• The square root of 138625928557 is 372325.0307956745
• The cube root of 138625928557 is 5175.4504628701

Scales and comparisons

• 138,625,928,557 seconds is equal to 4,407 years, 45 weeks, 3 days, 18 hours, 22 minutes, 37 seconds.
• To count from 1 to 138,625,928,557 would take you about eight thousand, eight hundred fifteen 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 138625928557 cubic inches would be around 431.3 feet tall.

Recreational maths with 138625928557

• 138625928557 backwards is 755829526831
• The number of decimal digits it has is: 12
• The sum of 138625928557's digits is 61
• More coming soon!