81636140124

Names of 81636140124

• Cardinal: 81636140124 can be written as Eighty-one billion, six hundred thirty-six million, one hundred forty thousand, one hundred twenty-four.

Scientific notation

• Scientific notation: 8.1636140124 × 10¹⁰

Factors of 81636140124

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4063

Divisors of 81636140124

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 49 63 66 77 84 97 98 99 121 126 132 147 154 194 196 198 231 242 252 291 294 308 363 388 396 441 462 484 539 582 588 679 693 726 847 873 882 924 1067 1078 1089 1164 1358 1386 1452 1617 1694 1746 1764 2037 2134 2156 2178 2541 2716 2772 3201 3234 3388 3492 3943 4074 4268 4356 4753 4851 5082 5929 6111 6402 6468 7469 7623 7886 8148 9506 9603 9702 10164 11737 11829 11858 12222 12804 14259 14938 15246 15772 17787 19012 19206 19404 22407 23474 23658 23716 24444 27601 28518 29876 30492 35211 35487 35574 38412 42777 43373 44814 46948 47316 52283 53361 55202 57036 67221 70422 70974 71148 82159 82803 85554 86746 89628 104566 105633 106722 110404 130119 134442 140844 141948 156849 164318 165606 171108 173492 193207 209132 211266 213444 246477 248409 260238 268884 303611 313698 328636 331212 382471 386414 390357 422532 470547 477103 492954 496818 520476 575113 579621 607222 627396 739431 764942 772828 780714 910833 941094 954206 985908 993636 1147413 1150226 1159242 1214444 1431309 1478862 1529884 1561428 1725339 1738863 1821666 1882188 1908412 2125277 2294826 2300452 2318484 2677297 2732499 2862618 2957724 3339721 3442239 3450678 3477726 3643332 4207181 4250554 4293927 4589652 5176017 5354594 5464998 5725236 6375831 6679442 6884478 6901356 6955452 8031891 8414362 8501108 8587854 10019163 10352034 10709188 10929996 12621543 12751662 13358884 13768956 16063782 16828724 17175708 18741079 19127493 20038326 20704068 23378047 24095673 25243086 25503324 29450267 30057489 32127564 37482158 37864629 38254986 40076652 46278991 46756094 48191346 50486172 56223237 58900534 60114978 70134141 74964316 75729258 76509972 88350801 92557982 93512188 96382692 112446474 117801068 120229956 138836973 140268282 151458516 168669711 176701602 185115964 206151869 210402423 224892948 265052403 277673946 280536564 323952937 337339422 353403204 412303738 416510919 420804846 530104806 555347892 618455607 647905874 674678844 824607476 833021838 841609692 971858811 1060209612 1236911214 1295811748 1666043676 1855366821 1943717622 2267670559 2473822428 2915576433 3710733642 3887435244 4535341118 5831152866 6803011677 7421467284 9070682236 11662305732 13606023354 20409035031 27212046708 40818070062 81636140124
• Sum of all divisors σ(n): 266643419952
• Sum of proper divisors (its aliquot sum) s(n): 185007279828
• 81636140124 is an abundant number, because the sum of its proper divisors (185007279828) is greater than itself. Its abundance is 103371139704

Bases of 81636140124

• Binary: 1001100000001111001001010010001011100₂
• Hexadecimal: 0x1301E4A45C
• Base-36: 11I41SV0

Squares and roots of 81636140124

• 81636140124 squared (81636140124²) is 6664459374345362735376
• 81636140124 cubed (81636140124³) is 544060739334763403034763067826624
• The square root of 81636140124 is 285720.3880089763
• The cube root of 81636140124 is 4338.0460125193

Scales and comparisons

• 81,636,140,124 seconds is equal to 2,595 years, 40 weeks, 2 days, 17 hours, 35 minutes, 24 seconds.
• To count from 1 to 81,636,140,124 would take you about five thousand, one 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 81636140124 cubic inches would be around 361.5 feet tall.

Recreational maths with 81636140124

• 81636140124 backwards is 42104163618
• 81636140124 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81636140124's digits is 36
• More coming soon!