12905641938378

Names of 12905641938378

• Cardinal: 12905641938378 can be written as Twelve trillion, nine hundred five billion, six hundred forty-one million, nine hundred thirty-eight thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 1.2905641938378 × 10¹³

Factors of 12905641938378

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 114

Divisors of 12905641938378

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 6 7 14 21 23 42 46 49 69 79 98 138 147 158 161 237 294 322 343 474 483 553 686 966 1029 1106 1127 1659 1817 2058 2254 2401 3318 3381 3634 3871 4802 5451 6241 6762 7203 7742 7889 10902 11613 12482 12719 14406 15778 18723 23226 23667 25438 27097 37446 38157 43687 47334 54194 55223 76314 81291 87374 89033 110446 131061 143543 162582 165669 178066 189679 262122 267099 287086 305809 331338 379358 430629 493039 534198 569037 611618 623231 861258 917427 986078 1004801 1138074 1246462 1479117 1834854 1869693 2009602 2140663 2958234 3014403 3451273 3739386 4281326 4362617 6028806 6421989 6902546 7033607 8725234 10353819 11339897 12843978 13087851 14067214 14984641 20707638 21100821 22679794 24158911 26175702 29969282 34019691 38950081 42201642 44953923 48317822 49235249 68039382 72476733 77900162 79379279 89907846 98470498 116850243 144953466 147705747 158758558 169112377 233700486 238137837 272650567 295411494 338224754 344646743 476275674 507337131 545301134 555654953 689293486 817951701 895851863 1014674262 1033940229 1111309906 1183786639 1635903402 1666964859 1791703726 1908553969 2067880458 2367573278 2687555589 3333929718 3551359917 3817107938 3889584671 5375111178 5725661907 6270963041 7102719834 7779169342 11451323814 11668754013 12541926082 13359877783 18812889123 23337508026 26719755566 27227092697 37625778246 40079633349 43896741287 54454185394 80159266698 81681278091 87793482574 93519144481 131690223861 163362556182 187038288962 263380447722 280557433443 307277189009 561114866886 614554378018 921831567027 1843663134054 2150940323063 4301880646126 6452820969189 12905641938378
• Sum of all divisors σ(n): 31823390661408
• Sum of proper divisors (its aliquot sum) s(n): 18917748723030
• 12905641938378 is an abundant number, because the sum of its proper divisors (18917748723030) is greater than itself. Its abundance is 6012106784652

Bases of 12905641938378

• Binary: 10111011110011010100001101000000110111001010₂
• Hexadecimal: 0xBBCD4340DCA
• Base-36: 4KORPZV7U

Squares and roots of 12905641938378

• 12905641938378 squared (12905641938378²) is 166555593841621061149270884
• 12905641938378 cubed (12905641938378³) is 2149506856953877311144225559787157586152
• The square root of 12905641938378 is 3592442.3361242697
• The cube root of 12905641938378 is 23456.3196072799

Scales and comparisons

• 12,905,641,938,378 seconds is equal to 410,359 years, 25 weeks, 4 days, 18 hours, 26 minutes, 18 seconds.
• To count from 1 to 12,905,641,938,378 would take you about one million, twenty-five thousand, eight hundred ninety-eight 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 12905641938378 cubic inches would be around 1954.7 feet tall.

Recreational maths with 12905641938378

• 12905641938378 backwards is 87383914650921
• The number of decimal digits it has is: 14
• The sum of 12905641938378's digits is 66
• More coming soon!