138240068145788

Names of 138240068145788

• Cardinal: 138240068145788 can be written as One hundred thirty-eight trillion, two hundred forty billion, sixty-eight million, one hundred forty-five thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38240068145788 × 10¹⁴

Factors of 138240068145788

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 274982

Divisors of 138240068145788

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 14 28 43 86 172 301 602 647 1204 1294 2588 4529 9058 18116 27821 55642 111284 194747 274283 389494 418609 548566 778988 837218 1097132 1674436 1919981 2930263 3839962 5860526 7679924 11721052 11794169 18000187 23588338 36000374 47176676 72000748 82559183 126001309 165118366 177461101 252002618 330236732 354922202 504005236 709844404 1242227707 2484455414 4968910828 7630827343 15261654686 30523309372 53415791401 106831582802 114817332347 213663165604 229634664694 459269329388 803721326429 1607442652858 3214885305716 4937145290921 9874290581842 19748581163684 34560017036447 69120034072894 138240068145788
• Sum of all divisors σ(n): 283348879938432
• Sum of proper divisors (its aliquot sum) s(n): 145108811792644
• 138240068145788 is an abundant number, because the sum of its proper divisors (145108811792644) is greater than itself. Its abundance is 6868743646856

Bases of 138240068145788

• Binary: 11111011011101010000110001001111101001001111100₂
• Hexadecimal: 0x7DBA8627D27C
• Base-36: 1D02LZBKAK

Squares and roots of 138240068145788

• 138240068145788 squared (138240068145788²) is 19110316440952110088422140944
• 138240068145788 cubed (138240068145788³) is 2641811447084792496660489002375031275943872
• The square root of 138240068145788 is 11757553.6633173825
• The cube root of 138240068145788 is 51706.4410570399

Scales and comparisons

• 138,240,068,145,788 seconds is equal to 4,395,606 years, 29 weeks, 1 day, 17 hours, 23 minutes, 8 seconds.
• To count from 1 to 138,240,068,145,788 would take you about ten million, nine hundred eighty-nine thousand and sixteen 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 138240068145788 cubic inches would be around 4308.9 feet tall.

Recreational maths with 138240068145788

• 138240068145788 backwards is 887541860042831
• The number of decimal digits it has is: 15
• The sum of 138240068145788's digits is 65
• More coming soon!