138786946432

Names of 138786946432

• Cardinal: 138786946432 can be written as One hundred thirty-eight billion, seven hundred eighty-six million, nine hundred forty-six thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 1.38786946432 × 10¹¹

Factors of 138786946432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1840923

Divisors of 138786946432

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 16 19 31 32 38 62 64 76 124 128 152 248 304 496 589 608 992 1178 1216 1984 2356 2432 3968 4712 9424 18848 37696 75392 1840871 3681742 7363484 14726968 29453936 34976549 57067001 58907872 69953098 114134002 117815744 139906196 228268004 235631488 279812392 456536008 559624784 913072016 1084273019 1119249568 1826144032 2168546038 2238499136 3652288064 4337092076 4476998272 7304576128 8674184152 17348368304 34696736608 69393473216 138786946432
• Sum of all divisors σ(n): 300430310400
• Sum of proper divisors (its aliquot sum) s(n): 161643363968
• 138786946432 is an abundant number, because the sum of its proper divisors (161643363968) is greater than itself. Its abundance is 22856417536

Bases of 138786946432

• Binary: 10000001010000010110001011110110000000₂
• Hexadecimal: 0x205058BD80
• Base-36: 1RRA5X8G

Squares and roots of 138786946432

• 138786946432 squared (138786946432²) is 19261816499918837530624
• 138786946432 cubed (138786946432³) is 2673288694757249436710424247533568
• The square root of 138786946432 is 372541.2009858775
• The cube root of 138786946432 is 5177.4534974715

Scales and comparisons

• 138,786,946,432 seconds is equal to 4,412 years, 51 weeks, 5 days, 9 hours, 33 minutes, 52 seconds.
• To count from 1 to 138,786,946,432 would take you about eight thousand, eight hundred twenty-five 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 138786946432 cubic inches would be around 431.5 feet tall.

Recreational maths with 138786946432

• 138786946432 backwards is 234649687831
• The number of decimal digits it has is: 12
• The sum of 138786946432's digits is 61
• More coming soon!