12639731390

Names of 12639731390

• Cardinal: 12639731390 can be written as Twelve billion, six hundred thirty-nine million, seven hundred thirty-one thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.263973139 × 10¹⁰

Factors of 12639731390

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 691

Divisors of 12639731390

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 5 10 11 13 22 26 55 65 110 113 121 130 143 169 226 242 286 338 547 565 605 715 845 1094 1130 1210 1243 1430 1469 1573 1690 1859 2486 2735 2938 3146 3718 5470 6017 6215 7111 7345 7865 9295 12034 12430 13673 14222 14690 15730 16159 18590 19097 20449 27346 30085 32318 35555 38194 40898 60170 61811 66187 68365 71110 78221 80795 92443 95485 102245 123622 132374 136730 156442 161590 177749 184886 190970 204490 210067 309055 330935 355498 391105 420134 462215 618110 661870 679921 782210 803543 860431 888745 924430 1016873 1050335 1359842 1607086 1720862 1777490 2033746 2100670 2310737 3399605 4017715 4302155 4621474 5084365 6799210 7479131 8035430 8604310 8838973 10168730 10446059 11185603 11553685 14958262 17677946 20892118 22371206 23107370 37395655 44194865 52230295 55928015 74791310 88389730 97228703 104460590 111856030 114906649 194457406 229813298 486143515 574533245 972287030 1149066490 1263973139 2527946278 6319865695 12639731390
• Sum of all divisors σ(n): 27369108144
• Sum of proper divisors (its aliquot sum) s(n): 14729376754
• 12639731390 is an abundant number, because the sum of its proper divisors (14729376754) is greater than itself. Its abundance is 2089645364

Bases of 12639731390

• Binary: 1011110001011000101111111010111110₂
• Hexadecimal: 0x2F162FEBE
• Base-36: 5T1DB5Q

Squares and roots of 12639731390

• 12639731390 squared (12639731390²) is 159762809611351332100
• 12639731390 cubed (12639731390³) is 2019358999599191132662684619000
• The square root of 12639731390 is 112426.5599847295
• The cube root of 12639731390 is 2329.4100681875

Scales and comparisons

• 12,639,731,390 seconds is equal to 401 years, 47 weeks, 4 hours, 29 minutes, 50 seconds.
• To count from 1 to 12,639,731,390 would take you about eight hundred three 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 12639731390 cubic inches would be around 194.1 feet tall.

Recreational maths with 12639731390

• 12639731390 backwards is 09313793621
• The number of decimal digits it has is: 11
• The sum of 12639731390's digits is 44
• More coming soon!