121491221698816281

Names of 121491221698816281

• Cardinal: 121491221698816281 can be written as One hundred twenty-one quadrillion, four hundred ninety-one trillion, two hundred twenty-one billion, six hundred ninety-eight million, eight hundred sixteen thousand, two hundred eighty-one.

Scientific notation

• Scientific notation: 1.21491221698816281 × 10¹⁷

Factors of 121491221698816281

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 445

Divisors of 121491221698816281

• Number of divisors d(n): 405
• Complete list of divisors:
  1 3 9 13 31 39 67 93 117 169 201 279 331 403 507 603 871 961 993 1209 1521 2077 2197 2613 2883 2979 3627 4303 4489 5239 6231 6591 7839 8649 10261 11323 12493 12909 13467 15717 18693 19773 22177 27001 28561 30783 33969 37479 38727 40401 47151 55939 58357 64387 66531 68107 81003 85683 92349 101907 109561 112437 133393 139159 147199 162409 167817 175071 193161 199593 204321 243009 257049 288301 318091 328683 351013 400179 417477 441597 487227 503451 525213 579483 612963 687487 727207 758641 837031 864903 885391 954273 986049 1053039 1200537 1252431 1324791 1424293 1461681 1485859 1734109 1809067 1913587 2062461 2111317 2181621 2275923 2511093 2594709 2656173 2862819 3159117 3396391 3747913 4135183 4272879 4313929 4457577 4563169 5202327 5427201 5740761 6187383 6333951 6544863 6827769 7340587 7533279 7968519 8937331 9453691 9862333 10189173 10881403 11243739 12405549 12818637 12941787 13372731 13689507 15606981 16281603 17222283 18515809 19001853 19316167 21312097 22021761 22543417 23517871 26811993 27447121 28361073 29586999 30567519 32644209 33731217 37216647 38825361 41068521 44153083 46061629 48722869 53757379 55547427 56081077 57948501 59321197 63936291 66065283 67630251 70553613 80435979 82341363 85083219 88760997 95427631 97932627 105288121 116185303 128210329 132459249 138184887 141458239 146168607 161272137 166642281 168243231 173845503 177963591 191808873 202890753 211660839 227558197 240705517 247024089 251110171 277057261 286282893 293064421 305732323 315864363 348555909 384630987 397377747 414554661 424374717 438505821 483816411 491819329 504729693 533890773 573990079 598801177 633397297 682674591 698845927 722116551 729054001 753330513 831171783 858848679 879193263 917196969 947593089 1045667727 1153892961 1240559203 1273124151 1368745573 1427910499 1475457987 1510408939 1721970237 1796403531 1838957107 1900191891 2048023773 2096537781 2166349653 2187162003 2259991539 2493515349 2637579789 2751590907 2958256561 3129171721 3264432223 3601744393 3721677609 3974520199 4106236719 4283731497 4426373961 4531226817 5165910711 5389210593 5516871321 5700575673 6289613343 6393651277 6561486009 7054304107 7461871027 7784415301 8874769683 9084997051 9387515163 9477702013 9793296669 10805233179 11165032827 11923560597 12318710157 12851194491 13593680451 15246399199 16127269639 16550613963 17793692449 18562836487 19180953831 19635316207 21162912321 22385613081 23353245903 26624309049 27254991153 28162545489 28433106039 29379890007 32415699537 35770681791 38457335293 42437618899 45739197597 46822677109 48381808917 53381077347 55688509461 57542861493 58905948621 63488736963 67156839243 70059737709 81764973459 83117466601 85299318117 91705953391 97004323351 101197398913 115372005879 123210126169 127312856697 137217592791 140468031327 145145426751 160143232041 167065528383 176717845863 198203189587 209654505307 231318001837 241316874331 249352399803 275117860173 291012970053 303592196739 346116017637 369630378507 381938570091 421404093981 472638375169 499945358809 594609568761 608694802417 628963515921 693954005511 723950622993 748057199409 825353580519 873038910159 910776590217 1080527065813 1108891135521 1192177394083 1315566185869 1417915125507 1499836076427 1783828706283 1826084407251 1886890547763 2081862016533 2171851868979 2576641464631 3007134023881 3137119366303 3241581197439 3576532182249 3946698557607 4253745376521 4499508229281 5478253221753 6144298877197 6499289664517 7729924393893 9021402071643 9411358098909 9724743592317 10729596546747 11840095672821 14046851855569 15498306123079 18432896631591 19497868993551 23189773181679 27064206214929 28234074296727 33496339040203 40782551761939 42140555566707 46494918369237 55298689894773 58493606980653 79875885403561 100489017120609 122347655285817 126421666700121 139484755107711 201477979600027 239627656210683 301467051361827 367042965857451 435452407522639 604433938800081 718882968632049 1038386510246293 1306357222567917 1813301816400243 3115159530738879 3919071667703751 9345478592216637 13499024633201809 40497073899605427 121491221698816281
• Sum of all divisors σ(n): 200021189048922969
• Sum of proper divisors (its aliquot sum) s(n): 78529967350106688
• 121491221698816281 is a deficient number, because the sum of its proper divisors (78529967350106688) is less than itself. Its deficiency is 42961254348709593

Bases of 121491221698816281

• Binary: 110101111100111111001111101011000101011111010100100011001₂
• Hexadecimal: 0x1AF9F9F58AFA919
• Base-36: X891KR13509

Squares and roots of 121491221698816281

• 121491221698816281 squared (121491221698816281²) is 14760116949870927955082396590670961
• 121491221698816281 cubed (121491221698816281³) is 1793224640657224863699858820996467695193141260716041
• 121491221698816281 is a perfect square number. Its square root is 348555909
• The cube root of 121491221698816281 is 495277.1589350325

Scales and comparisons

• 121,491,221,698,816,281 seconds is equal to 3,863,045,052 years, 51 weeks, 6 days, 20 hours, 31 minutes, 21 seconds.
• To count from 1 to 121,491,221,698,816,281 would take you about eleven billion, five hundred eighty-nine million, one hundred thirty-five thousand, one hundred fifty-eight 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 121491221698816281 cubic inches would be around 41273.1 feet tall.

Recreational maths with 121491221698816281

• 121491221698816281 backwards is 182618896122194121
• The number of decimal digits it has is: 18
• The sum of 121491221698816281's digits is 72
• More coming soon!