138024091891

Names of 138024091891

• Cardinal: 138024091891 can be written as One hundred thirty-eight billion, twenty-four million, ninety-one thousand, eight hundred ninety-one.

Scientific notation

• Scientific notation: 1.38024091891 × 10¹¹

Factors of 138024091891

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8376

Divisors of 138024091891

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 19 31 61 67 133 217 427 469 589 1159 1273 1891 2077 4087 4123 8113 8191 8911 13237 14539 28609 35929 39463 57337 77653 126697 155629 251503 253921 276241 499651 543571 548797 886879 1089403 1777447 2407243 3497557 3841579 4824499 9493369 10427143 15489181 16850701 17012707 33476617 33771493 66453583 72990001 108424267 119088949 234336319 294294439 323241433 636055723 1037775127 2060061073 2262690031 4452390061 7264425889 19717727413 138024091891
• Sum of all divisors σ(n): 176831856640
• Sum of proper divisors (its aliquot sum) s(n): 38807764749
• 138024091891 is a deficient number, because the sum of its proper divisors (38807764749) is less than itself. Its deficiency is 99216327142

Bases of 138024091891

• Binary: 10000000100010111000001000000011110011₂
• Hexadecimal: 0x2022E080F3
• Base-36: 1RENZAWJ

Squares and roots of 138024091891

• 138024091891 squared (138024091891²) is 19050649942335211955881
• 138024091891 cubed (138024091891³) is 2629448658224149146123480981860971
• The square root of 138024091891 is 371515.9376002597
• The cube root of 138024091891 is 5167.9499557411

Scales and comparisons

• 138,024,091,891 seconds is equal to 4,388 years, 38 weeks, 3 days, 1 hour, 31 minutes, 31 seconds.
• To count from 1 to 138,024,091,891 would take you about eight thousand, seven hundred seventy-seven 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 138024091891 cubic inches would be around 430.7 feet tall.

Recreational maths with 138024091891

• 138024091891 backwards is 198190420831
• The number of decimal digits it has is: 12
• The sum of 138024091891's digits is 46
• More coming soon!