81838920858344

Names of 81838920858344

• Cardinal: 81838920858344 can be written as Eighty-one trillion, eight hundred thirty-eight billion, nine hundred twenty million, eight hundred fifty-eight thousand, three hundred forty-four.

Scientific notation

• Scientific notation: 8.1838920858344 × 10¹³

Factors of 81838920858344

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 225

Divisors of 81838920858344

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 13 26 29 52 58 104 116 169 181 232 338 362 377 676 724 754 841 1352 1448 1508 1682 2197 2353 3016 3364 4394 4706 4901 5249 6728 8788 9412 9802 10498 10933 17576 18824 19604 20996 21866 28561 30589 32761 39208 41992 43732 57122 61178 63713 65522 68237 87464 114244 122356 127426 131044 136474 142129 152221 228488 244712 254852 262088 272948 284258 304442 371293 397657 425893 509704 545896 568516 608884 742586 795314 828269 851786 887081 950069 1137032 1217768 1485172 1590628 1656538 1703572 1774162 1847677 1900138 1978873 2970344 3181256 3313076 3407144 3548324 3695354 3800276 3957746 5169541 5536609 6626152 7096648 7390708 7600552 7915492 10339082 10767497 11073218 11532053 12350897 14781416 15830984 20678164 21534994 22146436 23064106 24019801 24701794 25725349 27552001 41356328 43069988 44292872 46128212 48039602 49403588 51450698 55104002 67204033 71975917 86139976 92256424 96079204 98807176 102901396 110208004 134408066 143951834 149916689 160561661 192158408 205802792 220416008 268816132 287903668 299833378 312257413 321123322 334429537 358176013 537632264 575807336 599666756 624514826 642246644 668859074 716352026 935686921 1199333512 1249029652 1284493288 1337718148 1432704052 1871373842 1948916957 2087301593 2498059304 2675436296 2865408104 3742747684 3897833914 4174603186 4347583981 4656288169 7485495368 7795667828 8349206372 8695167962 9312576338 12163929973 15591335656 16698412744 17390335924 18625152676 24327859946 27134920709 34780671848 37250305352 48655719892 54269841418 56518591753 60531746197 97311439784 108539682836 113037183506 121063492394 217079365672 226074367012 242126984788 352753969217 452148734024 484253969576 705507938434 786912700561 1411015876868 1573825401122 2822031753736 3147650802244 6295301604488 10229865107293 20459730214586 40919460429172 81838920858344
• Sum of all divisors σ(n): 173121632259030
• Sum of proper divisors (its aliquot sum) s(n): 91282711400686
• 81838920858344 is an abundant number, because the sum of its proper divisors (91282711400686) is greater than itself. Its abundance is 9443790542342

Bases of 81838920858344

• Binary: 10010100110111010011011110011100111101011101000₂
• Hexadecimal: 0x4A6E9BCE7AE8
• Base-36: T0CA4GL48

Squares and roots of 81838920858344

• 81838920858344 squared (81838920858344²) is 6697608967258292633714422336
• 81838920858344 cubed (81838920858344³) is 548125090211586501579495844795089245571584
• The square root of 81838920858344 is 9046486.6582748023
• The cube root of 81838920858344 is 43416.3488382869

Scales and comparisons

• 81,838,920,858,344 seconds is equal to 2,602,224 years, 28 weeks, 3 hours, 45 minutes, 44 seconds.
• To count from 1 to 81,838,920,858,344 would take you about six million, five hundred five thousand, five hundred sixty-one 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 81838920858344 cubic inches would be around 3618 feet tall.

Recreational maths with 81838920858344

• 81838920858344 backwards is 44385802983818
• The number of decimal digits it has is: 14
• The sum of 81838920858344's digits is 71
• More coming soon!