121397638908

Names of 121397638908

• Cardinal: 121397638908 can be written as One hundred twenty-one billion, three hundred ninety-seven million, six hundred thirty-eight thousand, nine hundred eight.

Scientific notation

• Scientific notation: 1.21397638908 × 10¹¹

Factors of 121397638908

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 58906

Divisors of 121397638908

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 31 39 42 52 61 62 78 84 91 93 122 124 156 182 183 186 217 244 273 364 366 372 403 427 434 546 651 732 793 806 854 868 1092 1209 1281 1302 1586 1612 1708 1891 2379 2418 2562 2604 2821 3172 3782 4758 4836 5124 5551 5642 5673 7564 8463 9516 11102 11284 11346 13237 16653 16926 22204 22692 24583 26474 33306 33852 39711 49166 52948 58789 66612 73749 79422 98332 117578 147498 158844 172081 176367 235156 294996 344162 352734 411523 516243 688324 705468 764257 823046 1032486 1234569 1528514 1646092 1822459 2064972 2292771 2469138 3057028 3586129 3644918 4585542 4938276 5349799 5467377 7172258 7289836 9171084 10699598 10758387 10934754 12757213 14344516 16049397 21399196 21516774 21869508 23691967 25102903 25514426 32098794 38271639 43033548 46619677 47383934 50205806 51028852 64197588 71075901 75308709 76543278 93239354 94767868 100411612 111169999 139859031 142151802 150617418 153086556 165843769 186478708 222339998 279718062 284303604 301234836 326337739 331687538 333509997 444679996 497531307 559436124 652675478 663375076 667019994 778189993 979013217 995062614 1305350956 1334039988 1445209987 1556379986 1958026434 1990125228 2334569979 2890419974 3112759972 3916052868 4335629961 4669139958 5780839948 8671259922 9338279916 10116469909 17342519844 20232939818 30349409727 40465879636 60698819454 121397638908
• Sum of all divisors σ(n): 365781032960
• Sum of proper divisors (its aliquot sum) s(n): 244383394052
• 121397638908 is an abundant number, because the sum of its proper divisors (244383394052) is greater than itself. Its abundance is 122985755144

Bases of 121397638908

• Binary: 1110001000011110111001111011011111100₂
• Hexadecimal: 0x1C43DCF6FC
• Base-36: 1JRP0POC

Squares and roots of 121397638908

• 121397638908 squared (121397638908²) is 14737386732437155432464
• 121397638908 cubed (121397638908³) is 1789083952991955805992935252709312
• The square root of 121397638908 is 348421.6395518511
• The cube root of 121397638908 is 4951.4995818217

Scales and comparisons

• 121,397,638,908 seconds is equal to 3,860 years, 3 weeks, 4 days, 6 hours, 21 minutes, 48 seconds.
• To count from 1 to 121,397,638,908 would take you about seven thousand, seven hundred twenty 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 121397638908 cubic inches would be around 412.6 feet tall.

Recreational maths with 121397638908

• 121397638908 backwards is 809836793121
• The number of decimal digits it has is: 12
• The sum of 121397638908's digits is 57
• More coming soon!