138163726805

Names of 138163726805

• Cardinal: 138163726805 can be written as One hundred thirty-eight billion, one hundred sixty-three million, seven hundred twenty-six thousand, eight hundred five.

Scientific notation

• Scientific notation: 1.38163726805 × 10¹¹

Factors of 138163726805

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 710

Divisors of 138163726805

• Number of divisors d(n): 54
• Complete list of divisors:
  1 5 13 19 65 95 169 247 361 673 845 1235 1805 3211 3365 4693 8749 12787 16055 23465 43745 61009 63935 113737 166231 242953 305045 452929 568685 831155 1214765 2161003 2264645 3158389 5888077 8605651 10805015 15791945 29440385 41059057 43028255 76545001 111873463 163507369 205295285 382725005 559367315 817536845 1454355019 2125595797 7271775095 10627978985 27632745361 138163726805
• Sum of all divisors σ(n): 189759371814
• Sum of proper divisors (its aliquot sum) s(n): 51595645009
• 138163726805 is a deficient number, because the sum of its proper divisors (51595645009) is less than itself. Its deficiency is 86568081796

Bases of 138163726805

• Binary: 10000000101011001100110010100111010101₂
• Hexadecimal: 0x202B3329D5
• Base-36: 1RGZ45W5

Squares and roots of 138163726805

• 138163726805 squared (138163726805²) is 19089215404646675508025
• 138163726805 cubed (138163726805³) is 2637437142089400802442250685110125
• The square root of 138163726805 is 371703.8159677675
• The cube root of 138163726805 is 5169.6921226945

Scales and comparisons

• 138,163,726,805 seconds is equal to 4,393 years, 9 weeks, 2 days, 5 hours, 5 seconds.
• To count from 1 to 138,163,726,805 would take you about eight thousand, seven hundred eighty-six 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 138163726805 cubic inches would be around 430.8 feet tall.

Recreational maths with 138163726805

• 138163726805 backwards is 508627361831
• The number of decimal digits it has is: 12
• The sum of 138163726805's digits is 50
• More coming soon!