128520721909232050230

Names of 128520721909232050230

• Cardinal: 128520721909232050230 can be written as One hundred twenty-eight quintillion, five hundred twenty quadrillion, seven hundred twenty-one trillion, nine hundred nine billion, two hundred thirty-two million, fifty thousand, two hundred thirty.

Scientific notation

• Scientific notation: 1.2852072190923205023 × 10²⁰

Factors of 128520721909232050230

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 24058130

Divisors of 128520721909232050230

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 126 147 210 245 294 315 441 490 630 735 882 1470 2205 3433 4410 6866 10299 17165 20598 24031 30897 34330 48062 51495 61794 72093 102990 120155 144186 154485 168217 216279 240310 308970 336434 358243 360465 432558 504651 716486 720930 841085 1009302 1074729 1081395 1513953 1682170 1791215 2149458 2162790 2507701 2523255 3027906 3224187 3582430 5015402 5046510 5373645 6448374 7523103 7569765 10747290 12538505 15046206 15139530 16120935 17553907 22569309 23696437 25077010 32241870 35107814 37615515 45138618 47392874 52661721 71089311 75231030 87769535 105323442 112846545 118482185 142178622 157985163 165875059 175539070 213267933 225693090 236964370 263308605 315970326 331750118 355446555 426535866 497625177 526617210 710893110 789925815 829375295 995250354 1066339665 1161125413 1229848219 1492875531 1579851630 1658750590 2132679330 2322250826 2459696438 2488125885 2985751062 3483376239 3689544657 4976251770 5805627065 6149241095 6966752478 7379089314 7464377655 8608937533 10450128717 11068633971 11611254130 12298482190 14928755310 17217875066 17416881195 18447723285 20900257434 22137267942 25826812599 34833762390 36895446570 43044687665 51653625198 52250643585 55343169855 60262562731 77480437797 81349868221 86089375330 104501287170 110686339710 120525125462 129134062995 154960875594 162699736442 180787688193 244049604663 258268125990 301312813655 361575376386 387402188985 406749341105 488099209326 542363064579 569449077547 602625627310 732148813989 774804377970 813498682210 903938440965 1084726129158 1138898155094 1220248023315 1464297627978 1708347232641 1807876881930 2440496046630 2711815322895 2847245387735 3416694465282 3660744069945 3986143542829 5125041697923 5423630645790 5694490775470 7321488139890 7972287085658 8489082680191 8541736163205 10250083395846 11958430628487 16978165360382 17083472326410 19930717714145 23916861256974 25467248040573 25625208489615 35875291885461 39861435428290 42445413400955 50934496081146 51250416979230 59423578761337 59792153142435 71750583770922 76401744121719 84890826801910 118847157522674 119584306284870 127336240202865 152803488243438 178270736284011 179376459427305 254672480405730 297117893806685 356541472568022 358752918854610 382008720608595 415965051329359 534812208852033 594235787613370 764017441217190 831930102658718 891353681420055 1069624417704066 1247895153988077 1782707362840110 2079825256646795 2495790307976154 2674061044260165 3743685461964231 4159650513293590 5348122088520330 6239475769940385 7487370923928462 12478951539880770 18718427309821155 29143020841095703 37436854619642310 58286041682191406 87429062523287109 145715104205478515 174858125046574218 204001145887669921 262287187569861327 291430208410957030 408002291775339842 437145312616435545 524574375139722654 612003437663009763 874290625232871090 1020005729438349605 1224006875326019526 1311435937849306635 1428008021213689447 1836010312989029289 2040011458876699210 2622871875698613270 2856016042427378894 3060017188315048815 3672020625978058578 4284024063641068341 6120034376630097630 7140040106068447235 8568048127282136682 9180051564945146445 12852072190923205023 14280080212136894470 18360103129890292890 21420120318205341705 25704144381846410046 42840240636410683410 64260360954616025115 128520721909232050230
• Sum of all divisors σ(n): 388823941132467875424
• Sum of proper divisors (its aliquot sum) s(n): 260303219223235825194
• 128520721909232050230 is an abundant number, because the sum of its proper divisors (260303219223235825194) is greater than itself. Its abundance is 131782497314003774964

Bases of 128520721909232050230

• Binary: 1101111011110010101010100111010010011111100100010100010000000110110₂
• Hexadecimal: 0x6F79553A4FC8A2036
• Base-36: R4FUHNAEBRWHI

Squares and roots of 128520721909232050230

• 128520721909232050230 squared (128520721909232050230²) is 16517575960070159130438552825449243052900
• 128520721909232050230 cubed (128520721909232050230³) is 2122850786578793517033047256134323250580323722689851347167000
• The square root of 128520721909232050230 is 11336698016.1435036009
• The cube root of 128520721909232050230 is 5046509.0000000011

Scales and comparisons

• 128,520,721,909,232,050,230 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 128,520,721,909,232,050,230 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 128520721909232050230 cubic inches would be around 420542.4 feet tall.

Recreational maths with 128520721909232050230

• 128520721909232050230 backwards is 032050232909127025821
• 128520721909232050230 is a Harshad number.
• The number of decimal digits it has is: 21
• The sum of 128520721909232050230's digits is 63
• More coming soon!