81208842112188

Names of 81208842112188

• Cardinal: 81208842112188 can be written as Eighty-one trillion, two hundred eight billion, eight hundred forty-two million, one hundred twelve thousand, one hundred eighty-eight.

Scientific notation

• Scientific notation: 8.1208842112188 × 10¹³

Factors of 81208842112188

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 380

Divisors of 81208842112188

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 19 21 27 28 36 38 42 49 54 57 63 76 84 98 108 114 126 133 147 171 189 196 228 252 266 294 342 349 361 378 399 441 513 532 588 684 698 722 756 798 882 931 1026 1047 1083 1197 1323 1396 1444 1596 1764 1862 2052 2094 2166 2394 2443 2527 2646 2793 3141 3249 3591 3724 4188 4332 4788 4886 5054 5292 5586 6282 6498 6631 7182 7329 7581 8379 9423 9747 9772 10108 11172 12564 12996 13262 14364 14658 15162 16758 17101 17689 18846 19494 19893 21987 22743 25137 26524 29316 30324 33516 34202 35378 37692 38988 39786 43974 45486 46417 50274 51303 53067 59679 65961 68229 68404 70756 79572 87948 90972 92834 100548 102606 106134 119358 121801 125989 131922 136458 139251 153909 159201 179037 185668 205212 212268 238716 243602 251978 263844 272916 278502 307818 318402 324919 358074 365403 377967 417753 461727 477603 487204 503956 557004 615636 636804 649838 716148 730806 755934 835506 852607 881923 923454 955206 974757 1096209 1133901 1253259 1299676 1461612 1511868 1671012 1705214 1763846 1846908 1910412 1949514 2192418 2267802 2314219 2506518 2557821 2645769 2924271 3288627 3401703 3410428 3527692 3899028 4384836 4535604 4628438 5013036 5115642 5291538 5848542 5968249 6173461 6577254 6803406 6942657 7673463 7937307 8772813 9256876 10231284 10583076 11697084 11936498 12346922 13154508 13606812 13885314 15346926 15874614 16199533 17545626 17904747 18520383 20827971 23020389 23811921 23872996 24693844 27770628 30693852 31749228 32399066 35091252 35809494 37040766 41655942 42508549 43970161 46040778 47623842 48598599 53714241 55561149 62483913 64798132 71618988 74081532 83311884 85017098 87940322 92081556 95247684 97197198 107428482 111122298 113396731 124967826 127525647 131910483 145795797 161142723 166683447 170034196 175880644 194394396 214856964 222244596 226793462 249935652 255051294 263820966 291591594 297559843 307791127 322285446 333366894 340190193 382576941 395731449 437387391 453586924 510102588 527641932 583183188 595119686 615582254 644570892 666733788 680380386 765153882 791462898 807662431 874774782 892679529 923373381 1020570579 1147730823 1187194347 1190239372 1231164508 1360760772 1530307764 1582925796 1615324862 1749549564 1785359058 1846746762 2041141158 2082918901 2154537889 2295461646 2374388694 2422987293 2678038587 2770120143 3061711737 3230649724 3570718116 3693493524 4082282316 4165837802 4309075778 4590923292 4748777388 4845974586 5356077174 5540240286 5653637017 6123423474 6248756703 6463613667 7268961879 8034115761 8310360429 8331675604 8618151556 9691949172 10712154348 11080480572 11307274034 12246846948 12497513406 12927227334 14537923758 15345586189 16068231522 16620720858 16960911051 18746270109 19390841001 21806885637 22614548068 24995026812 25854454668 29075847516 30691172378 32136463044 33241441716 33921822102 37492540218 38781682002 39575459119 43613771274 46036758567 50882733153 56238810327 58172523003 61382344756 67843644204 74985080436 77563364004 79150918238 87227542548 92073517134 101765466306 107419103323 112477620654 116345046006 118726377357 138110275701 152648199459 158301836476 184147034268 203530932612 214838206646 224955241308 232690092012 237452754714 276220551402 305296398918 322257309969 356179132071 414330827103 429676413292 474905509428 552441102804 610592797836 644514619938 712358264142 751933723261 828661654206 966771929907 1068537396213 1289029239876 1424716528284 1503867446522 1657323308412 1933543859814 2137074792426 2255801169783 2900315789721 3007734893044 3867087719628 4274149584852 4511602339566 5800631579442 6767403509349 9023204679132 11601263158884 13534807018698 20302210528047 27069614037396 40604421056094 81208842112188
• Sum of all divisors σ(n): 259227055332000
• Sum of proper divisors (its aliquot sum) s(n): 178018213219812
• 81208842112188 is an abundant number, because the sum of its proper divisors (178018213219812) is greater than itself. Its abundance is 96809371107624

Bases of 81208842112188

• Binary: 10010011101101111101000001011111100110010111100₂
• Hexadecimal: 0x49DBE82FCCBC
• Base-36: SSATRUD30

Squares and roots of 81208842112188

• 81208842112188 squared (81208842112188²) is 6594876037202279145178147344
• 81208842112188 cubed (81208842112188³) is 535562246854611962002316522250861642228672
• The square root of 81208842112188 is 9011594.8706201833
• The cube root of 81208842112188 is 43304.6406837323

Scales and comparisons

• 81,208,842,112,188 seconds is equal to 2,582,189 years, 51 weeks, 1 day, 1 hour, 49 minutes, 48 seconds.
• To count from 1 to 81,208,842,112,188 would take you about six million, four hundred fifty-five thousand, four hundred seventy-four 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 81208842112188 cubic inches would be around 3608.7 feet tall.

Recreational maths with 81208842112188

• 81208842112188 backwards is 88121124880218
• 81208842112188 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81208842112188's digits is 54
• More coming soon!