642849498787221

Names of 642849498787221

• Cardinal: 642849498787221 can be written as Six hundred forty-two trillion, eight hundred forty-nine billion, four hundred ninety-eight million, seven hundred eighty-seven thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 6.42849498787221 × 10¹⁴

Factors of 642849498787221

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3322

Divisors of 642849498787221

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 9 11 27 33 37 41 61 99 111 121 123 183 297 333 363 369 407 451 549 671 999 1089 1107 1221 1331 1353 1517 1647 2013 2257 2501 3169 3267 3663 3721 3993 4059 4477 4551 4961 6039 6771 7381 7503 9507 10989 11163 11979 12177 13431 13653 14883 16687 18117 20313 22143 22509 24827 27511 28521 33489 34859 35937 40293 40931 40959 44649 49247 50061 54571 60939 66429 67527 74481 81191 82533 85563 92537 100467 104577 117253 120879 122793 129929 133947 137677 147741 150183 152561 163713 183557 193309 199287 223443 243573 247599 273097 277611 302621 313731 351759 368379 383449 389787 413031 443223 450241 450549 457683 491139 550671 579927 670329 730719 742797 819291 832833 907863 941193 1017907 1055277 1105137 1150347 1169361 1239093 1289783 1329669 1350723 1373049 1429219 1473417 1514447 1652013 1678171 1739781 2019127 2126399 2192157 2457873 2498499 2723589 3004067 3053721 3165831 3328831 3451041 3508083 3717279 3869349 4052169 4119147 4217939 4287657 4543341 4807373 4952651 4956039 5034513 5219343 5644757 6057381 6379197 7152433 7373619 7925669 8170767 9012201 9161163 9986493 10353123 11196977 11608047 11791849 12156507 12653817 12862971 13630023 14187613 14422119 14857953 15103539 15721409 16658917 16934271 18172143 18459881 19137591 21457299 23390389 23777007 27036603 27483489 29959479 33590931 34824141 35375547 37961451 38588913 40890069 42562839 43266357 44573859 45310617 47164227 49976751 50802813 52881103 54516429 55379643 57412773 62092327 64371897 70171167 71331021 78676763 81109809 87182359 89878437 100772793 106126641 113884353 123166747 127688517 129710339 129799071 133721577 141492681 149930253 152408439 156063743 158643309 166138929 172935499 183248087 186276981 193115691 203058691 210513501 213993063 236030289 257294279 261547077 293249753 302318379 318379923 369500241 383065551 389131017 424478043 436298413 449790759 468191229 475929927 483465809 498416787 518806497 549744261 558830943 581692133 609176073 631540503 683015597 708090867 771882837 784641231 865444393 879749259 959005949 1108500723 1167393051 1308895239 1404573687 1426813729 1427789781 1450397427 1556419491 1649232783 1676492829 1745076399 1827528219 2049046791 2124272601 2315648511 2353923693 2596333179 2639247777 2877017847 3225747283 3325502169 3502179153 3926685717 4213721061 4280441187 4351192281 4669258473 4799282543 4947698349 5235229197 5318123899 5482584657 6147140373 6398613463 6946945533 7513171567 7788999537 7917743331 8631053541 9519888323 9677241849 10549065439 11780057151 12841323561 13053576843 14397847629 15694951019 15705687591 15954371697 17888234933 18441421119 19195840389 22539514701 23366998611 25893160623 28559664969 29031725547 31647196317 35483220113 38523970683 43193542887 47084853057 47863115091 52792107973 53664704799 57587521167 58499362889 67618544103 85678994907 87095176641 94941588951 106449660339 129580628661 141254559171 143589345273 158376323919 160994114397 172762563501 175498088667 196770584263 202855632309 257036984721 284824766853 319348981017 390315421243 423763677513 475128971757 482982343191 526494266001 580713187703 590311752789 643492991779 958046943051 1170946263729 1425386915271 1579482798003 1742139563109 1770935258367 1930478975337 2164476426893 3512838791187 5226418689327 5312805775101 5791436926011 6493429280679 10538516373561 15679256067981 17374310778033 19480287842037 23809240695823 58440863526111 71427722087469 214283166262407 642849498787221
• Sum of all divisors σ(n): 1120803706713600
• Sum of proper divisors (its aliquot sum) s(n): 477954207926379
• 642849498787221 is a deficient number, because the sum of its proper divisors (477954207926379) is less than itself. Its deficiency is 164895290860842

Bases of 642849498787221

• Binary: 10010010001010101100010000000001001110110110010101₂
• Hexadecimal: 0x248AB1004ED95
• Base-36: 6BVCZDP1N9

Squares and roots of 642849498787221

• 642849498787221 squared (642849498787221²) is 413255478090981253949832902841
• 642849498787221 cubed (642849498787221³) is 265661076961860688147320952490861031425394861
• The square root of 642849498787221 is 25354476.8983156307
• The cube root of 642849498787221 is 86305.0953188373

Scales and comparisons

• 642,849,498,787,221 seconds is equal to 20,440,625 years, 31 weeks, 10 hours, 40 minutes, 21 seconds.
• To count from 1 to 642,849,498,787,221 would take you about fifty-one million, one hundred one thousand, five hundred sixty-three 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 642849498787221 cubic inches would be around 7192.1 feet tall.

Recreational maths with 642849498787221

• 642849498787221 backwards is 122787894948246
• The number of decimal digits it has is: 15
• The sum of 642849498787221's digits is 81
• More coming soon!