138890431896

Names of 138890431896

• Cardinal: 138890431896 can be written as One hundred thirty-eight billion, eight hundred ninety million, four hundred thirty-one thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 1.38890431896 × 10¹¹

Factors of 138890431896

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 731

Divisors of 138890431896

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 12 24 127 254 381 508 599 762 1016 1198 1524 1797 2396 3048 3594 4792 7188 14376 16129 32258 48387 64516 76073 96774 129032 152146 193548 228219 304292 358801 387096 456438 608584 717602 912876 1076403 1435204 1825752 2152806 2870408 4305612 8611224 9661271 19322542 28983813 38645084 45567727 57967626 77290168 91135454 115935252 136703181 182270908 231870504 273406362 364541816 546812724 1093625448 5787101329 11574202658 17361303987 23148405316 34722607974 46296810632 69445215948 138890431896
• Sum of all divisors σ(n): 350566923420
• Sum of proper divisors (its aliquot sum) s(n): 211676491524
• 138890431896 is an abundant number, because the sum of its proper divisors (211676491524) is greater than itself. Its abundance is 72786059628

Bases of 138890431896

• Binary: 10000001010110100000111100110110011000₂
• Hexadecimal: 0x205683CD98
• Base-36: 1RSZRZ4O

Squares and roots of 138890431896

• 138890431896 squared (138890431896²) is 19290552072257414154816
• 138890431896 cubed (138890431896³) is 2679273108828110051650538048411136
• The square root of 138890431896 is 372680.0664054897
• The cube root of 138890431896 is 5178.7400211129

Scales and comparisons

• 138,890,431,896 seconds is equal to 4,416 years, 14 weeks, 6 days, 3 hours, 31 minutes, 36 seconds.
• To count from 1 to 138,890,431,896 would take you about eight thousand, eight hundred thirty-two 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 138890431896 cubic inches would be around 431.6 feet tall.

Recreational maths with 138890431896

• 138890431896 backwards is 698134098831
• The number of decimal digits it has is: 12
• The sum of 138890431896's digits is 60
• More coming soon!