81288300012016

Names of 81288300012016

• Cardinal: 81288300012016 can be written as Eighty-one trillion, two hundred eighty-eight billion, three hundred million, twelve thousand and sixteen.

Scientific notation

• Scientific notation: 8.1288300012016 × 10¹³

Factors of 81288300012016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 516

Divisors of 81288300012016

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 8 16 47 94 113 157 188 197 226 314 376 394 452 628 752 788 904 1256 1576 1808 2512 3152 5311 7379 9259 10622 14758 17741 18518 21244 22261 24649 29516 30929 35482 37036 38809 42488 44522 49298 59032 61858 70964 74072 77618 84976 89044 98596 118064 123716 141928 148144 155236 178088 197192 247432 283856 310472 356176 394384 494864 620944 833827 1046267 1158503 1453663 1667654 1824023 2092534 2317006 2785337 2907326 3335308 3494977 3648046 4185068 4385417 4634012 4855853 5570674 5814652 6093013 6670616 6989954 7296092 8370136 8770834 9268024 9711706 11141348 11629304 12186026 13341232 13979908 14592184 16740272 17541668 18536048 19423412 22282696 23258608 24372052 27959816 29184368 35083336 38846824 44565392 48744104 55919632 70166672 77693648 97488208 130910839 164263919 206114599 228225091 261821678 286371611 328527838 412229198 456450182 523643356 548711389 572743222 657055676 688510469 824458396 912900364 956603041 1047286712 1097422778 1145486444 1314111352 1377020938 1648916792 1825800728 1913206082 2094573424 2194845556 2290972888 2628222704 2754041876 3297833584 3651601456 3826412164 4389691112 4581945776 5508083752 7652824328 8779382224 11016167504 15305648656 25789435283 32359992043 44960342927 51578870566 64719984086 89920685854 103157741132 108096143633 129439968172 179841371708 206315482264 216192287266 258879936344 359682743416 412630964528 432384574532 517759872688 719365486832 864769149064 1729538298128 5080518750751 10161037501502 20322075003004 40644150006008 81288300012016
• Sum of all divisors σ(n): 164143836363168
• Sum of proper divisors (its aliquot sum) s(n): 82855536351152
• 81288300012016 is an abundant number, because the sum of its proper divisors (82855536351152) is greater than itself. Its abundance is 1567236339136

Bases of 81288300012016

• Binary: 10010011110111001101000001111110010000111110000₂
• Hexadecimal: 0x49EE683F21F0
• Base-36: STBBV0WZ4

Squares and roots of 81288300012016

• 81288300012016 squared (81288300012016²) is 6607787718843520425744384256
• 81288300012016 cubed (81288300012016³) is 537135830505066918653660972152749321220096
• The square root of 81288300012016 is 9016002.4407725179
• The cube root of 81288300012016 is 43318.7597299105

Scales and comparisons

• 81,288,300,012,016 seconds is equal to 2,584,716 years, 25 weeks, 6 days, 16 hours, 40 minutes, 16 seconds.
• To count from 1 to 81,288,300,012,016 would take you about six million, four hundred sixty-one thousand, seven hundred ninety-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 81288300012016 cubic inches would be around 3609.9 feet tall.

Recreational maths with 81288300012016

• 81288300012016 backwards is 61021000388218
• The number of decimal digits it has is: 14
• The sum of 81288300012016's digits is 40
• More coming soon!