81590426138212002

Names of 81590426138212002

• Cardinal: 81590426138212002 can be written as Eighty-one quadrillion, five hundred ninety trillion, four hundred twenty-six billion, one hundred thirty-eight million, two hundred twelve thousand and two.

Scientific notation

• Scientific notation: 8.1590426138212002 × 10¹⁶

Factors of 81590426138212002

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 266150

Divisors of 81590426138212002

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 6 9 11 18 22 23 33 46 66 69 99 121 138 198 207 242 253 363 414 506 529 726 759 1058 1089 1518 1587 2178 2277 2783 3174 4554 4761 5566 5819 8349 9522 11638 16698 17457 25047 34914 50094 52371 64009 104742 128018 192027 266111 384054 532222 576081 798333 1152162 1596666 2394999 2927221 4789998 5854442 6120553 8781663 12241106 17563326 18361659 26344989 32199431 36723318 52689978 55084977 64398862 67326083 96598293 110169954 134652166 140772719 193196586 201978249 281545438 289794879 403956498 422318157 579589758 605934747 740586913 844636314 1211869494 1266954471 1481173826 1548499909 2221760739 2533908942 3096999818 4443521478 4645499727 6665282217 9290999454 13330564434 13936499181 17033498999 27872998362 34066997998 51100496997 70815064321 102200993994 141630128642 153301490991 212445192963 306602981982 424890385926 637335578889 778965707531 1274671157778 1557931415062 1628746479383 2336897122593 3257492958766 4673794245186 4886239438149 7010691367779 8568622782841 9772478876298 14021382735558 14658718314447 17137245565682 17916211273213 25705868348523 29317436628894 35832422546426 37461169025809 51411736697046 53748633819639 74922338051618 77117605045569 107497267639278 112383507077427 154235210091138 161245901458917 197078324005343 224767014154854 322491802917834 337150521232281 394156648010686 412072859283899 591234972016029 674301042464562 824145718567798 1182469944032058 1236218577851697 1773704916048087 2472437155703394 3547409832096174 3708655733555091 4532801452122889 7417311467110182 9065602904245778 13598404356368667 27196808712737334 40795213069106001 81590426138212002
• Sum of all divisors σ(n): 203127472782651963
• Sum of proper divisors (its aliquot sum) s(n): 121537046644439961
• 81590426138212002 is an abundant number, because the sum of its proper divisors (121537046644439961) is greater than itself. Its abundance is 39946620506227959

Bases of 81590426138212002

• Binary: 100100001110111100000111101101111000010100111011010100010₂
• Hexadecimal: 0x121DE0F6F0A76A2
• Base-36: MBDE4BKBD0I

Squares and roots of 81590426138212002

• 81590426138212002 squared (81590426138212002²) is 6656997637415028262088261496848004
• 81590426138212002 cubed (81590426138212002³) is 543147274037762665482222066117025625788583322544008
• The square root of 81590426138212002 is 285640379.0401700227
• The cube root of 81590426138212002 is 433723.6132642971

Scales and comparisons

• 81,590,426,138,212,002 seconds is equal to 2,594,323,175 years, 22 weeks, 4 days, 22 hours, 26 minutes, 42 seconds.
• To count from 1 to 81,590,426,138,212,002 would take you about seven billion, seven hundred eighty-two million, nine hundred sixty-nine thousand, five hundred twenty-six 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 81590426138212002 cubic inches would be around 36143.6 feet tall.

Recreational maths with 81590426138212002

• 81590426138212002 backwards is 20021283162409518
• The number of decimal digits it has is: 17
• The sum of 81590426138212002's digits is 54
• More coming soon!