81432846720225

Names of 81432846720225

• Cardinal: 81432846720225 can be written as Eighty-one trillion, four hundred thirty-two billion, eight hundred forty-six million, seven hundred twenty thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 8.1432846720225 × 10¹³

Factors of 81432846720225

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 640

Divisors of 81432846720225

• Number of divisors d(n): 729
• Complete list of divisors:
  1 3 5 7 9 11 13 15 21 25 33 35 39 45 49 55 63 65 75 77 91 99 105 117 121 143 147 165 169 175 195 225 231 245 273 275 315 325 363 385 429 441 455 495 507 525 539 585 601 605 637 693 715 735 819 825 845 847 975 1001 1089 1155 1183 1225 1287 1365 1521 1573 1575 1617 1803 1815 1859 1911 1925 2145 2205 2275 2475 2535 2541 2695 2925 3003 3005 3025 3185 3465 3549 3575 3675 4095 4207 4225 4235 4719 4851 5005 5409 5445 5577 5733 5775 5915 5929 6435 6611 6825 7007 7605 7623 7813 7865 8085 8281 9009 9015 9075 9295 9555 10647 10725 11011 11025 12621 12675 12705 13013 13475 14157 15015 15025 15925 16731 17325 17745 17787 19833 20449 20475 21021 21035 21175 23439 23595 24255 24843 25025 27045 27225 27885 28665 29449 29575 29645 32175 33033 33055 35035 37863 38025 38115 39039 39065 39325 40425 41405 45045 45075 46277 46475 47775 53235 53361 54691 55055 59499 61347 63063 63105 63525 65065 70317 70785 72721 74529 75075 77077 83655 85943 88347 88725 88935 91091 99099 99165 101569 102245 105105 105175 117117 117195 117975 121275 124215 135225 138831 139425 143143 143325 147245 148225 164073 165165 165275 175175 184041 189315 190575 195195 195325 207025 218163 225225 231231 231385 257829 265041 266175 266805 273273 273455 275275 297495 304707 306735 315315 315525 323939 325325 351585 353925 361201 363605 372645 382837 385385 416493 418275 429429 429715 441735 444675 455455 492219 495495 495825 507845 509047 511225 525525 585585 585975 601601 621075 654489 693693 694155 710983 715715 736225 773487 819819 820365 825825 914121 920205 945373 946575 971817 975975 1002001 1083603 1090815 1117259 1148511 1156155 1156925 1288287 1289145 1325205 1334025 1366365 1367275 1487475 1523535 1527141 1533675 1576575 1619695 1757925 1804803 1806005 1818025 1863225 1914185 1926925 2082465 2132949 2147145 2148575 2208675 2277275 2461095 2477475 2528407 2539225 2545235 2836119 2915451 2927925 3006003 3008005 3250809 3272445 3351777 3445533 3468465 3470775 3554915 3563329 3578575 3867435 3973211 4099095 4101825 4211207 4570605 4581423 4601025 4695613 4726865 4859085 4976881 5010005 5414409 5418015 5454075 5586295 5742555 5780775 6398847 6441435 6445725 6617611 6626025 6831825 7585221 7617675 7635705 7820813 8098475 8508357 9018009 9024015 9030025 9570925 10055331 10412325 10664745 10689987 10735725 11919633 12289849 12305475 12633621 12642035 12726175 14086839 14180595 14577255 14930643 15030015 15040025 16254045 16362225 16758885 17227665 17342325 17698849 17774575 17816645 19337175 19852833 19866055 20495475 21056035 22755663 22853025 22907115 23462439 23478065 23634325 24295425 24884405 25050025 27072045 27090075 27812477 27931475 28712775 31994235 32069961 32207175 32869291 33088055 35758899 36869547 37900863 37926105 38178525 39104065 42260517 42541785 43705321 44791929 45090045 45120075 46323277 50276655 51651743 53096547 53323725 53449935 54745691 59558499 59598165 61042969 61449245 63168105 63210175 70387317 70434195 70902975 72886275 74653215 75150075 81270225 83437431 83794425 86028943 86138325 88494245 89083225 98607873 99264165 99330275 105280175 110608641 113778315 114535575 117312195 117390325 124422025 131115963 135360225 138969831 139062385 154955229 159289641 159971175 160349805 164237073 164346455 165440275 178794495 183128907 184347735 189504315 189630525 194687339 195520325 211302585 212708925 218526605 223959645 225450225 230085037 231616385 250312293 251383275 258086829 258258715 265482735 267249675 273728455 295823619 297792495 297990825 305214845 305937247 307246225 315840525 351936585 352170975 361562201 373266075 393347889 416909493 417187155 427300783 430144715 442471225 464865687 492711219 493039365 496320825 549386721 553043205 568169173 568891575 584062017 586560975 602202601 655579815 671472659 690255111 694849155 695311925 774260487 774776145 796448205 801749025 821185365 821732275 893972475 915644535 917811741 921738675 947521575 973436695 1056512925 1084686603 1092633025 1119798225 1150425185 1158081925 1251561465 1281902349 1290434145 1291293575 1327413675 1368642275 1479118095 1488962475 1526074225 1529686235 1704507519 1752186051 1759682925 1806607803 1807811005 1966739445 2014417977 2070765333 2084547465 2085935775 2136503915 2141560729 2150723575 2324328435 2463556095 2465196825 2530935407 2746933605 2753435223 2765216025 2840845865 2920310085 2991105481 3011013005 3254059809 3277899075 3357363295 3451275555 3474245775 3845707047 3871302435 3873880725 3977184211 3982241025 4105926825 4578222675 4589058705 4700308613 4867183475 5113522557 5419823409 5423433015 5752125925 6043253931 6257807325 6409511745 6424682187 6452170725 7386199249 7395590475 7592806221 7648431175 8522537595 8760930255 8973316443 9033039015 9039055025 9833697225 10072089885 10353826665 10422737325 10682519575 10707803645 11621642175 11931552633 12317780475 12654677035 13734668025 13767176115 14100925839 14204229325 14601550425 14955527405 15055065025 16270299045 16786816475 17256377775 19228535235 19274046561 19356512175 19885921055 22158597747 22778418663 22945293525 23501543065 25567612785 26919949329 27099117045 27117165075 27840289477 30216269655 32047558725 32123410935 32902160291 35794657899 36930996245 37964031105 42302777517 42612687975 43804651275 44866582215 45165195075 50360449425 51703394743 51769133325 53539018225 59657763165 63273385175 66475793241 68835880575 70504629195 74777637025 81351495225 83520868431 96142676175 96370232805 98706480873 99429605275 110792988735 113892093315 117507715325 127838063925 134599746645 135495585225 139201447385 151081348275 155110184229 160617054675 164510801455 178973289495 184654981225 189820155525 211513887585 224332911075 250562605293 258516973715 296119442619 298288815825 332378966205 352523145975 361923763201 417604342155 465330552687 481851164025 493532404365 553964943675 569460466575 672998733225 696007236925 775550921145 822554007275 894866447475 1057569437925 1085771289603 1252813026465 1292584868575 1480597213095 1661894831025 1809618816005 2088021710775 2326652763435 2467662021825 3257313868809 3877754605725 5428856448015 6264065132325 7402986065475 9048094080025 11633263817175 16286569344045 27144282240075 81432846720225
• Sum of all divisors σ(n): 202280862217707
• Sum of proper divisors (its aliquot sum) s(n): 120848015497482
• 81432846720225 is an abundant number, because the sum of its proper divisors (120848015497482) is greater than itself. Its abundance is 39415168777257

Bases of 81432846720225

• Binary: 10010100001000000001111111001101101110011100001₂
• Hexadecimal: 0x4A100FE6DCE1
• Base-36: SV5QEEIU9

Squares and roots of 81432846720225

• 81432846720225 squared (81432846720225²) is 6631308524959659539424050625
• 81432846720225 cubed (81432846720225³) is 540006330667561293875420435023515611390625
• 81432846720225 is a perfect square number. Its square root is 9024015
• The cube root of 81432846720225 is 43344.4209724183

Scales and comparisons

• 81,432,846,720,225 seconds is equal to 2,589,312 years, 33 weeks, 1 day, 3 minutes, 45 seconds.
• To count from 1 to 81,432,846,720,225 would take you about six million, four hundred seventy-three thousand, two hundred eighty-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 81432846720225 cubic inches would be around 3612 feet tall.

Recreational maths with 81432846720225

• 81432846720225 backwards is 52202764823418
• The number of decimal digits it has is: 14
• The sum of 81432846720225's digits is 54
• More coming soon!