81627810432290213

Names of 81627810432290213

• Cardinal: 81627810432290213 can be written as Eighty-one quadrillion, six hundred twenty-seven trillion, eight hundred ten billion, four hundred thirty-two million, two hundred ninety thousand, two hundred thirteen.

Scientific notation

• Scientific notation: 8.1627810432290213 × 10¹⁶

Factors of 81627810432290213

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 613

Divisors of 81627810432290213

• Number of divisors d(n): 288
• Complete list of divisors:
  1 7 13 23 49 79 91 161 299 343 491 529 553 637 1027 1127 1817 2093 3437 3703 3871 4459 6241 6383 6877 7189 7889 11293 12167 12719 14651 23621 24059 25921 27097 38789 41791 43687 44681 48139 50323 79051 81133 85169 89033 102557 143543 146809 158171 165347 168413 181447 241081 259739 271523 292537 305809 312767 336973 352261 504257 543283 553357 567931 596183 623231 892147 961193 1004801 1027663 1107197 1157429 1687567 1818173 1866059 1900661 2047759 2140663 2189369 2358811 3064331 3134053 3301489 3376607 3529799 3802981 3873499 3975517 4173281 5544863 5973997 6245029 6728351 7033607 7193641 7750379 8102003 11597911 11812969 12495509 12727211 13062413 13304627 14334313 19045399 20519381 21450317 21938371 23110423 23636249 24708593 26620867 27828619 38814041 39836303 41817979 42919357 43715203 47098457 49235249 50355487 54252653 70479613 72083219 75934247 77661961 81185377 82690783 87468563 89090477 91436891 127531849 133317793 143635667 150152219 153568597 161772961 165453743 172960151 186346069 247590187 266751953 271698287 278854121 292725853 300435499 306006421 329689199 438044177 471945763 493357291 504582533 531539729 543633727 568297639 612279941 640058237 892722943 916234969 933224551 987145211 1005449669 1051065533 1074980179 1132410727 1158176201 1504586521 1621031099 1657914037 1733131309 1867263671 1901888009 1951978847 2049080971 2103048493 2933232527 3066309239 3303620341 3453501037 3532077731 3720778103 3805436089 3978083473 4285959587 5694574301 6135294919 6249060601 6413644783 6532571857 6910016477 7038147683 10075016071 10532105647 11347217693 11605398259 12131919163 13070845697 13663851929 14721339451 19559624773 20532627689 21073404287 21464164673 23125342387 24174507259 24724544117 26045446721 26638052623 34605489983 37283715277 38132022851 39862020107 42947064433 43743424207 44895513481 48370115339 70525112497 73724739529 79430523851 81237787813 84923434141 91495919879 130975208923 136917373411 143728393823 147513830009 150249152711 161877396709 231725369633 242238429881 260986006939 266924159957 279034140749 300629451031 314268594367 338590807373 449871369779 484688298601 493675787479 516073176703 556013666957 568664514691 795926269609 916826462461 958421613877 1006098756761 1032596810063 1622077587431 1695669009167 1826902048573 1868469119699 1953238985243 2104406157217 3012429805229 3149099588453 3392818090207 3455730512353 5571483887263 6417785237227 6708951297139 7228177670441 10347041504917 11354543112017 11869683064169 12788314340011 13079283837893 18306304201007 21087008636603 22043697119171 23749726631449 39000387210841 44924496660589 72429290534419 79481801784119 128144129407049 147609060456221 154305879834197 166248086420143 237981954613091 273002710475887 507005033740933 897008905849343 1033263423193547 1665873682291637 3549035236186531 6279062340945401 11661115776041459 81627810432290213
• Sum of all divisors σ(n): 108770048283456000
• Sum of proper divisors (its aliquot sum) s(n): 27142237851165787
• 81627810432290213 is a deficient number, because the sum of its proper divisors (27142237851165787) is less than itself. Its deficiency is 54485572581124426

Bases of 81627810432290213

• Binary: 100100010000000000000111110100100100111000000110110100101₂
• Hexadecimal: 0x122000FA49C0DA5
• Base-36: MBQN6FFRXK5

Squares and roots of 81627810432290213

• 81627810432290213 squared (81627810432290213²) is 6663099435969906930121888255585369
• 81627810432290213 cubed (81627810432290213³) is 543894217650851403025283699780721129481087604693597
• The square root of 81627810432290213 is 285705810.9879640037
• The cube root of 81627810432290213 is 433789.8464244295

Scales and comparisons

• 81,627,810,432,290,213 seconds is equal to 2,595,511,880 years, 18 weeks, 1 day, 19 hours, 16 minutes, 53 seconds.
• To count from 1 to 81,627,810,432,290,213 would take you about seven billion, seven hundred eighty-six million, five hundred thirty-five thousand, six hundred forty-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 81627810432290213 cubic inches would be around 36149.2 feet tall.

Recreational maths with 81627810432290213

• 81627810432290213 backwards is 31209223401872618
• The number of decimal digits it has is: 17
• The sum of 81627810432290213's digits is 59
• More coming soon!