138136636818

Names of 138136636818

• Cardinal: 138136636818 can be written as One hundred thirty-eight billion, one hundred thirty-six million, six hundred thirty-six thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.38136636818 × 10¹¹

Factors of 138136636818

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 905

Divisors of 138136636818

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 18 27 43 54 81 86 129 162 243 258 387 486 729 774 857 1161 1458 1714 2187 2322 2571 3483 4374 5142 6966 7713 10449 15426 20898 23139 31347 36851 46278 62694 69417 73702 94041 110553 138834 188082 208251 221106 331659 416502 624753 663318 734449 994977 1249506 1468898 1874259 1989954 2203347 2984931 3748518 4406694 5969862 6610041 8954793 13220082 17909586 19830123 26864379 31581307 39660246 53728758 59490369 63162614 80593137 94743921 118980738 161186274 178471107 189487842 284231763 356942214 535413321 568463526 852695289 1070826642 1606239963 1705390578 2558085867 3212479926 5116171734 7674257601 15348515202 23022772803 46045545606 69068318409 138136636818
• Sum of all divisors σ(n): 318358518720
• Sum of proper divisors (its aliquot sum) s(n): 180221881902
• 138136636818 is an abundant number, because the sum of its proper divisors (180221881902) is greater than itself. Its abundance is 42085245084

Bases of 138136636818

• Binary: 10000000101001100101011100110110010010₂
• Hexadecimal: 0x202995CD92
• Base-36: 1RGIZJ4I

Squares and roots of 138136636818

• 138136636818 squared (138136636818²) is 19081730431388033165124
• 138136636818 cubed (138136636818³) is 2635886066459627204962073011935432
• The square root of 138136636818 is 371667.3738949923
• The cube root of 138136636818 is 5169.3542239573

Scales and comparisons

• 138,136,636,818 seconds is equal to 4,392 years, 16 weeks, 3 days, 16 hours, 18 seconds.
• To count from 1 to 138,136,636,818 would take you about eight thousand, seven hundred eighty-four 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 138136636818 cubic inches would be around 430.8 feet tall.

Recreational maths with 138136636818

• 138136636818 backwards is 818636631831
• 138136636818 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138136636818's digits is 54
• More coming soon!