138627730878

Names of 138627730878

• Cardinal: 138627730878 can be written as One hundred thirty-eight billion, six hundred twenty-seven million, seven hundred thirty thousand, eight hundred seventy-eight.

Scientific notation

• Scientific notation: 1.38627730878 × 10¹¹

Factors of 138627730878

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 460866

Divisors of 138627730878

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 13 14 19 21 26 29 38 39 42 57 58 78 87 91 114 133 174 182 203 247 266 273 377 399 406 494 546 551 609 741 754 798 1102 1131 1218 1482 1653 1729 2262 2639 3306 3458 3857 5187 5278 7163 7714 7917 10374 11571 14326 15834 21489 23142 42978 50141 100282 150423 300846 460793 921586 1382379 2764758 3225551 5990309 6451102 8755067 9676653 11980618 13362997 17510134 17970927 19353306 26265201 26725994 35941854 40088991 41932163 52530402 61285469 80177982 83864326 93540979 113815871 122570938 125796489 173718961 183856407 187081958 227631742 251592978 253896943 280622937 341447613 347437922 367712814 507793886 521156883 561245874 682895226 761690829 796711097 1042313766 1216032727 1523381658 1593422194 1777278601 2390133291 2432065454 3300660259 3554557202 3648098181 4780266582 5331835803 6601320518 7296196362 9901980777 10663671606 19803961554 23104621813 46209243626 69313865439 138627730878
• Sum of all divisors σ(n): 371584281600
• Sum of proper divisors (its aliquot sum) s(n): 232956550722
• 138627730878 is an abundant number, because the sum of its proper divisors (232956550722) is greater than itself. Its abundance is 94328819844

Bases of 138627730878

• Binary: 10000001000110110110110100110110111110₂
• Hexadecimal: 0x2046DB4DBE
• Base-36: 1RONDDQ6

Squares and roots of 138627730878

• 138627730878 squared (138627730878²) is 19217647768383194650884
• 138627730878 cubed (138627730878³) is 2664098902943622785240636316796152
• The square root of 138627730878 is 372327.4511475081
• The cube root of 138627730878 is 5175.4728920141

Scales and comparisons

• 138,627,730,878 seconds is equal to 4,407 years, 48 weeks, 3 days, 15 hours, 1 minute, 18 seconds.
• To count from 1 to 138,627,730,878 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 138627730878 cubic inches would be around 431.3 feet tall.

Recreational maths with 138627730878

• 138627730878 backwards is 878037726831
• The number of decimal digits it has is: 12
• The sum of 138627730878's digits is 60
• More coming soon!