81680176572813

Names of 81680176572813

• Cardinal: 81680176572813 can be written as Eighty-one trillion, six hundred eighty billion, one hundred seventy-six million, five hundred seventy-two thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 8.1680176572813 × 10¹³

Factors of 81680176572813

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 300

Divisors of 81680176572813

• Number of divisors d(n): 768
• Complete list of divisors:
  1 3 7 9 13 17 19 21 27 39 49 51 57 63 91 117 119 133 147 153 169 171 189 221 241 247 273 323 351 357 361 399 441 459 507 513 637 663 723 741 819 833 931 969 1071 1083 1183 1197 1323 1521 1547 1687 1729 1911 1989 2169 2197 2223 2261 2457 2499 2527 2793 2873 2907 3133 3211 3213 3249 3549 3591 4097 4199 4563 4579 4641 4693 5061 5187 5733 5967 6137 6507 6591 6669 6783 6859 7497 7581 8281 8379 8619 8721 9399 9633 9747 10647 10829 11809 12103 12291 12597 13737 13923 14079 15183 15379 15561 15827 17199 17689 18411 19773 20111 20349 20577 21931 22477 22491 22743 24843 25137 25857 28197 28679 28899 29393 31941 32053 32487 32851 35427 36309 36873 37349 37791 40729 41211 41743 41769 42237 42959 45549 46137 46683 47481 48013 53067 53261 54587 55233 59319 59527 60333 61009 61047 61731 65793 67431 68229 74529 77571 77843 79781 84591 86037 86697 87001 88179 89167 96159 97461 98553 106281 107653 108927 110619 112047 113373 116603 122187 123633 125229 126711 128877 138411 140777 142443 144039 153517 157339 159201 159783 163761 165699 178581 180999 183027 185193 197379 200753 202293 205751 223587 224371 229957 233529 239343 258111 261003 261443 264537 267501 285103 288477 292201 292383 295659 300713 318843 322959 326781 336091 336141 349809 366561 372827 375687 382109 386631 415233 416689 422331 427063 427329 432117 460551 472017 477603 479349 491283 529477 535743 542997 544901 549081 558467 592137 602259 606879 609007 617253 624169 673113 689871 692393 700587 709631 718029 773851 774333 783009 784329 793117 793611 802503 816221 855309 865431 876603 886977 902139 968877 1008273 1008423 1011959 1037153 1049427 1099683 1118481 1127061 1131013 1146327 1159171 1159893 1250067 1266993 1281189 1296351 1381653 1416051 1438047 1473849 1479017 1515839 1588431 1607229 1634703 1647243 1653019 1675401 1806777 1827021 1830101 1851759 1872507 1995721 2019339 2045407 2069613 2077179 2101761 2128893 2154087 2321553 2349027 2352987 2379351 2407509 2448663 2565927 2609789 2629809 2674763 2706417 2906631 2916823 2989441 3024819 3035877 3111459 3148281 3355443 3393039 3438981 3477513 3706339 3750201 3800979 3814307 3843567 3909269 4144959 4248153 4263049 4369183 4437051 4547517 4765293 4846751 4904109 4959057 4967417 5026203 5416957 5420331 5481063 5490303 5551819 5555277 5617521 5713547 5987163 6058017 6136221 6208839 6231537 6386679 6964659 7058961 7083713 7138053 7260071 7345989 7697781 7829367 7889427 7917091 8024289 8114197 8119251 8750469 8968323 9001109 9074457 9107631 9334377 10060063 10066329 10179117 10316943 10353119 10432539 10610873 11119017 11250603 11442921 11530701 11571133 11727807 12789147 13107549 13155467 13311153 13482989 13642551 14295879 14540253 14703169 14712327 14877171 14902251 15069223 15078609 16250871 16443189 16470909 16655457 16852563 17140641 17961489 18408663 18694611 19160037 19227221 19705907 20893977 21251139 21414159 21489247 21780213 22037967 23488101 23751273 24072867 24342591 25944373 26251407 26904969 27003327 27322893 28003131 28101323 30180189 30537351 31059357 31297617 31832619 33357051 33927257 34328763 34713399 34771919 35183421 37918699 38367441 38862733 39322647 39466401 39933459 40448967 40927653 43620759 44109507 44631513 44706753 45207669 48752613 49412727 49585991 49966371 50820497 51421923 53884467 55225989 55419637 56799379 57681663 59117721 63007763 63753417 64467741 65340639 70420441 70464303 71253819 72218601 72471833 73027773 74276111 77833119 78754221 80714907 80997931 81009981 84303969 90540567 92088269 93178071 94380923 95497857 100071153 101781771 102922183 102986289 104140197 104315757 105484561 105550263 113756097 115102323 116588199 117967941 118399203 121346901 130862277 132328521 134120259 134590547 135623007 137941349 146257839 148757973 149899113 150424729 152461491 154265769 166258911 170398137 171021071 173044989 177353163 189023289 191141197 191260251 193403223 196021917 196709261 211261323 213761457 217415499 219083319 222828333 233499357 242993793 243029943 249953873 252911907 256176791 271621701 276264807 279360211 279534213 283142769 286493571 305345313 308766549 312420591 312947271 316453683 341268291 349764597 355197609 364040703 365317199 396985563 403771641 406869021 413824047 441054341 446273919 451274187 457384473 492943087 498776733 511194411 513063213 519134967 532059489 567069867 573423591 580209669 590127783 633783969 644617883 652246497 660666461 668484999 700498071 720455281 728981379 738391927 749861619 758735721 768530373 828794421 838080633 849428307 916035939 926299647 938841813 942133829 949361049 965589443 1023804873 1049293791 1052973103 1095951597 1197147497 1211314923 1241472141 1323163023 1337988379 1338821757 1353822561 1372153419 1376964827 1478829261 1496330199 1533583233 1539189639 1701209601 1720270773 1749677111 1770383349 1793237537 1901351907 1933853649 1955521477 1956739491 1981999383 2005454997 2161365843 2186944137 2215175781 2249584857 2305591119 2486383263 2514241899 2548284921 2557220393 2778898941 2826401487 2848083147 2896768329 3158919309 3249400349 3287854791 3591442491 3631682743 3633944769 3724416423 3969489069 4013965137 4061467683 4130894481 4436487783 4617568917 4749123587 5160812319 5249031333 5311150047 5379712611 5801560947 5866564431 5945998149 6484097529 6645527343 6748754571 6916773357 7542725697 7671661179 8380032479 8479204461 8690304987 9365918653 9476757927 9748201047 9863564373 10774327473 10895048229 11908467207 12041895411 12247739777 12392683443 12552662759 13309463349 13688650339 14247370761 15747093999 16139137833 17404682841 17599693293 17837994447 17900542751 19452292587 19936582029 22745802443 23014983537 25140097437 25421779201 25437613383 26070914961 28097755959 28430273781 29244603141 32322982419 32685144687 33243865109 36125686233 36743219331 37178050329 37657988277 41065951017 42742112283 47241281997 48417413499 52799079879 53701628253 61738606631 68237407329 69044950611 75420292311 76265337603 84293267877 87733809423 98055434061 99731595327 110229657993 112973964831 123197853051 128226336849 159220617101 161104884759 177952454407 185215819893 204712221987 226260876933 228796012809 232707055763 252879803631 299194785981 330688973979 338921894493 369593559153 432170246417 477661851303 483314654277 533857363221 555647459679 614136665961 686388038427 698121167289 897584357943 1296510739251 1432985553909 1601572089663 1666942379037 2094363501867 3025191724919 3889532217753 4298956661727 4804716268989 6283090505601 9075575174757 11668596653259 27226725524271 81680176572813
• Sum of all divisors σ(n): 171134764416000
• Sum of proper divisors (its aliquot sum) s(n): 89454587843187
• 81680176572813 is an abundant number, because the sum of its proper divisors (89454587843187) is greater than itself. Its abundance is 7774411270374

Bases of 81680176572813

• Binary: 10010100100100110100101111010001110100110001101₂
• Hexadecimal: 0x4A49A5E8E98D
• Base-36: SYBCS7MH9

Squares and roots of 81680176572813

• 81680176572813 squared (81680176572813²) is 6671651244965909638290732969
• 81680176572813 cubed (81680176572813³) is 544941651721043177838341005715152168171797
• The square root of 81680176572813 is 9037708.5908328003
• The cube root of 81680176572813 is 43388.2588689893

Scales and comparisons

• 81,680,176,572,813 seconds is equal to 2,597,176 years, 50 weeks, 53 minutes, 33 seconds.
• To count from 1 to 81,680,176,572,813 would take you about six million, four hundred ninety-two thousand, nine hundred forty-two 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 81680176572813 cubic inches would be around 3615.7 feet tall.

Recreational maths with 81680176572813

• 81680176572813 backwards is 31827567108618
• 81680176572813 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81680176572813's digits is 63
• More coming soon!