121891636352142140736

Names of 121891636352142140736

• Cardinal: 121891636352142140736 can be written as One hundred twenty-one quintillion, eight hundred ninety-one quadrillion, six hundred thirty-six trillion, three hundred fifty-two billion, one hundred forty-two million, one hundred forty thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 1.21891636352142140736 × 10²⁰

Factors of 121891636352142140736

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3104780

Divisors of 121891636352142140736

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 97 112 168 192 194 224 291 336 388 448 582 672 679 776 1164 1344 1358 1552 2037 2328 2716 3104 4074 4656 5432 6208 8148 9312 9409 10864 16296 18624 18818 21728 28227 32592 37636 43456 56454 65184 65863 75272 112908 130368 131726 150544 197589 225816 263452 301088 395178 451632 526904 602176 790356 903264 1053808 1580712 1806528 2107616 3104671 3161424 4215232 6209342 6322848 9314013 12418684 12645696 18628026 21732697 24837368 37256052 43465394 49674736 65198091 74512104 86930788 99349472 130396182 149024208 173861576 198698944 260792364 298048416 301153087 347723152 521584728 596096832 602306174 695446304 903459261 1043169456 1204612348 1390892608 1806918522 2086338912 2108071609 2409224696 3613837044 4172677824 4216143218 4818449392 6324214827 7227674088 8432286436 9636898784 12648429654 14455348176 16864572872 19273797568 25296859308 28910696352 29211849439 33729145744 50593718616 57821392704 58423698878 67458291488 87635548317 101187437232 116847397756 134916582976 175271096634 202374874464 204482946073 233694795512 350542193268 404749748928 408965892146 467389591024 613448838219 701084386536 817931784292 934779182048 1226897676438 1402168773072 1635863568584 1869558364096 2453795352876 2804337546144 3271727137168 4907590705752 5608675092288 6543454274336 9638982018241 9815181411504 13086908548672 19277964036482 19630362823008 28916946054723 38555928072964 39260725646016 57833892109446 67472874127687 77111856145928 115667784218892 134945748255374 154223712291856 202418622383061 231335568437784 269891496510748 308447424583712 404837244766122 462671136875568 539782993021496 616894849167424 809674489532244 925342273751136 934981255769377 1079565986042992 1619348979064488 1850684547502272 1869962511538754 2159131972085984 2804943767308131 3238697958128976 3739925023077508 4318263944171968 5609887534616262 6477395916257952 6544868790385639 7479850046155016 11219775069232524 12954791832515904 13089737580771278 14959700092310032 19634606371156917 22439550138465048 26179475161542556 29919400184620064 39269212742313834 44879100276930096 52358950323085112 59838800369240128 78538425484627668 89758200553860192 90693181809629569 104717900646170224 157076850969255336 179516401107720384 181386363619259138 209435801292340448 272079545428888707 314153701938510672 362772727238518276 418871602584680896 544159090857777414 628307403877021344 634852272667406983 725545454477036552 1088318181715554828 1256614807754042688 1269704545334813966 1451090908954073104 1904556818002220949 2176636363431109656 2539409090669627932 2902181817908146208 3809113636004441898 4353272726862219312 5078818181339255864 5804363635816292416 7618227272008883796 8706545453724438624 10157636362678511728 15236454544017767592 17413090907448877248 20315272725357023456 30472909088035535184 40630545450714046912 60945818176071070368 121891636352142140736
• Sum of all divisors σ(n): 372416147474201733024
• Sum of proper divisors (its aliquot sum) s(n): 250524511122059592288
• 121891636352142140736 is an abundant number, because the sum of its proper divisors (250524511122059592288) is greater than itself. Its abundance is 128632874769917451552

Bases of 121891636352142140736

• Binary: 1101001101110010110000101010111001111100100100001011110010101000000₂
• Hexadecimal: 0x69B961573E485E540
• Base-36: PQ2PUXR59FL1C

Squares and roots of 121891636352142140736

• 121891636352142140736 squared (121891636352142140736²) is 14857571012602859401710655474132830621696
• 121891636352142140736 cubed (121891636352142140736³) is 1811013642944316013267603139487620804912314582999323207008256
• The square root of 121891636352142140736 is 11040454535.5769723733
• The cube root of 121891636352142140736 is 4958206.7902055155

Scales and comparisons

• 121,891,636,352,142,140,736 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 121,891,636,352,142,140,736 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 121891636352142140736 cubic inches would be around 413183.9 feet tall.

Recreational maths with 121891636352142140736

• 121891636352142140736 backwards is 637041241253636198121
• The number of decimal digits it has is: 21
• The sum of 121891636352142140736's digits is 75
• More coming soon!