81678355768318122

Names of 81678355768318122

• Cardinal: 81678355768318122 can be written as Eighty-one quadrillion, six hundred seventy-eight trillion, three hundred fifty-five billion, seven hundred sixty-eight million, three hundred eighteen thousand, one hundred twenty-two.

Scientific notation

• Scientific notation: 8.1678355768318122 × 10¹⁶

Factors of 81678355768318122

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 81873

Divisors of 81678355768318122

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 47 54 66 94 99 141 198 282 297 423 517 594 846 877 1034 1269 1551 1754 2209 2538 2631 3102 4418 4653 5262 6627 7893 9306 9647 13254 13959 15786 19294 19881 23679 24299 27918 28941 39762 41219 47358 48598 57882 59643 72897 80933 82438 86823 119286 123657 145794 161866 173646 218691 242799 247314 260469 370971 437382 453409 485598 520938 656073 728397 741942 769129 890263 906818 1112913 1312146 1360227 1456794 1538258 1780526 1937293 2185191 2225826 2307387 2670789 2720454 3803851 3874586 4080681 4370382 4614774 5341578 5811879 6922161 7607702 8012367 8161362 8460419 11411553 11623758 12242043 13844322 16024734 16920838 17435637 20766483 21310223 22823106 24037101 24484086 25381257 34234659 34871274 36149063 41532966 41842361 42620446 48074202 50762514 52306911 63930669 68469318 70978241 72298126 76143771 83684722 102703977 104613822 108447189 125527083 127861338 141956482 152287542 178780997 191792007 205407954 212934723 216894378 228431313 251054166 325341567 357561994 376581249 383584014 397639693 425869446 456862626 536342991 575376021 638804169 650683134 753162498 780760651 795279386 976024701 1072685982 1129743747 1150752042 1192919079 1277608338 1561521302 1609028973 1699005961 1916412507 1952049402 1966590967 2259487494 2342281953 2385838158 3218057946 3335977327 3398011922 3578757237 3832825014 3933181934 4684563906 4827086919 5097017883 5899772901 6671954654 7026845859 7157514474 9654173838 10007931981 10194035766 10736271711 11799545802 14053691718 15291053649 17699318703 18689065571 20015863962 21080537577 21472543422 30023795943 30582107298 35398637406 36695750597 37378131142 42161075154 45873160947 53097956109 56067196713 60047591886 62247917357 73391501194 90071387829 91746321894 106195912218 110087251791 112134393426 124495834714 156790934369 168201590139 180142775658 186743752071 220174503582 313581868738 330261755373 336403180278 373487504142 470372803107 504604770417 560231256213 660523510746 684727090927 940745606214 990785266119 1009209540834 1120462512426 1369454181854 1411118409321 1680693768639 1724700278059 1981570532238 2054181272781 2822236818642 2925652115779 3361387537278 3449400556118 4108362545562 4233355227963 5174100834177 5851304231558 6162543818343 8466710455926 8776956347337 10348201668354 12325087636686 15522302502531 17553912694674 18487631455029 26330869042011 31044605005062 32182173273569 36975262910058 46566907507593 52661738084022 64364346547138 78992607126033 93133815015186 96546519820707 137505649441613 157985214252066 193093039641414 275011298883226 289639559462121 412516948324839 579279118924242 825033896649678 868918678386363 1237550844974517 1512562143857743 1737837356772726 2475101689949034 3025124287715486 3712652534923551 4537686431573229 7425305069847102 9075372863146458 13613059294719687 27226118589439374 40839177884159061 81678355768318122
• Sum of all divisors σ(n): 202544161828223040
• Sum of proper divisors (its aliquot sum) s(n): 120865806059904918
• 81678355768318122 is an abundant number, because the sum of its proper divisors (120865806059904918) is greater than itself. Its abundance is 39187450291586796

Bases of 81678355768318122

• Binary: 100100010001011100000100000100101011010001001100010101010₂
• Hexadecimal: 0x1222E08256898AA
• Base-36: MC8K6MVSZAI

Squares and roots of 81678355768318122

• 81678355768318122 squared (81678355768318122²) is 6671353801015946233611356593606884
• 81678355768318122 cubed (81678355768318122³) is 544905209215701840723954818145464577668178321151848
• The square root of 81678355768318122 is 285794254.2605048981
• The cube root of 81678355768318122 is 433879.3646467557

Scales and comparisons

• 81,678,355,768,318,122 seconds is equal to 2,597,119,065 years, 35 weeks, 6 days, 2 hours, 8 minutes, 42 seconds.
• To count from 1 to 81,678,355,768,318,122 would take you about seven billion, seven hundred ninety-one million, three hundred fifty-seven thousand, one hundred ninety-seven 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 81678355768318122 cubic inches would be around 36156.6 feet tall.

Recreational maths with 81678355768318122

• 81678355768318122 backwards is 22181386755387618
• The number of decimal digits it has is: 17
• The sum of 81678355768318122's digits is 81
• More coming soon!