645673827363138

Names of 645673827363138

• Cardinal: 645673827363138 can be written as Six hundred forty-five trillion, six hundred seventy-three billion, eight hundred twenty-seven million, three hundred sixty-three thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 6.45673827363138 × 10¹⁴

Factors of 645673827363138

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 515

Divisors of 645673827363138

• Number of divisors d(n): 390
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 49 54 63 81 98 126 147 162 189 243 294 343 378 441 486 503 567 686 729 882 1006 1029 1134 1323 1458 1509 1701 2058 2187 2401 2646 3018 3087 3402 3521 3969 4374 4527 4802 5103 6174 6561 7042 7203 7938 9054 9261 10206 10563 11907 13122 13581 14406 15309 18522 19683 21126 21609 23814 24647 27162 27783 30618 31689 35721 39366 40743 43218 45927 49294 55566 59049 63378 64827 71442 73941 81486 83349 91854 95067 107163 118098 122229 129654 137781 147882 166698 172529 177147 190134 194481 214326 221823 244458 250047 253009 275562 285201 321489 345058 354294 366687 388962 413343 443646 500094 506018 517587 531441 570402 583443 642978 665469 733374 750141 759027 826686 855603 964467 1035174 1062882 1100061 1166886 1207703 1240029 1330938 1500282 1518054 1552761 1711206 1750329 1771063 1928934 1996407 2200122 2250423 2277081 2415406 2480058 2566809 2893401 3105522 3300183 3500658 3542126 3623109 3720087 3992814 4500846 4554162 4658283 5133618 5250987 5313189 5786802 5989221 6600366 6751269 6831243 7246218 7440174 7700427 8680203 9316566 9900549 10501974 10626378 10869327 11978442 12397441 13502538 13662486 13974849 15400854 15752961 15939567 17360406 17967663 19801098 20253807 20493729 21738654 23101281 24794882 26040609 27949698 29701647 31505922 31879134 32607981 35935326 37192323 40507614 40987458 41924547 46202562 47258883 47818701 52081218 53902989 59403294 60761421 61481187 65215962 69303843 74384646 83849094 86782087 89104941 94517766 95637402 97823943 107805978 111576969 121522842 122962374 125773641 138607686 141776649 143456103 161708967 173564174 178209882 182284263 184443561 195647886 207911529 223153938 251547282 260346261 267314823 283553298 286912206 293471829 323417934 334730907 364568526 368887122 377320923 415823058 425329947 430368309 485126901 520692522 534629646 553330683 586943658 607474609 623734587 669461814 754641846 781038783 850659894 860736618 880415487 970253802 1004192721 1106661366 1131962769 1214949218 1247469174 1275989841 1291104927 1455380703 1562077566 1659992049 1760830974 1822423827 1871203761 2008385442 2263925538 2343116349 2551979682 2582209854 2641246461 2910761406 3012578163 3319984098 3395888307 3644847654 3742407522 3873314781 4366142109 4686232698 4979976147 5282492922 5467271481 6025156326 6791776614 7029349047 7746629562 7923739383 8732284218 9037734489 9959952294 10187664921 10934542962 11619944343 13098426327 14058698094 14939928441 15847478766 16401814443 18075468978 20375329842 21088047141 23239888686 23771218149 26196852654 27113203467 29879856882 30562994763 32803628886 34859833029 42176094282 44819785323 47542436298 49205443329 54226406934 61125989526 63264141423 69719666058 71313654447 81339610401 89639570646 91688984289 98410886658 104579499087 126528282846 134459355969 142627308894 147616329987 162679220802 183377968578 189792424269 209158998174 213940963341 244018831203 268918711938 295232659974 313738497261 379584848538 427881926682 442848989961 488037662406 569377272807 627476994522 641822890023 732056493609 885697979922 941215491783 1138754545614 1283645780046 1328546969883 1464112987218 1708131818421 1882430983566 2196169480827 2657093939766 3416263636842 3985640909649 4392338961654 5124395455263 6588508442481 7971281819298 10248790910526 11956922728947 13177016884962 15373186365789 23913845457894 30746372731578 35870768186841 46119559097367 71741536373682 92239118194734 107612304560523 215224609121046 322836913681569 645673827363138
• Sum of all divisors σ(n): 1698167955410979
• Sum of proper divisors (its aliquot sum) s(n): 1052494128047841
• 645673827363138 is an abundant number, because the sum of its proper divisors (1052494128047841) is greater than itself. Its abundance is 406820300684703

Bases of 645673827363138

• Binary: 10010010110011110010100111000111101110100101000010₂
• Hexadecimal: 0x24B3CA71EE942
• Base-36: 6CVEGM0A4I

Squares and roots of 645673827363138

• 645673827363138 squared (645673827363138²) is 416894691341763333510121207044
• 645673827363138 cubed (645673827363138³) is 269177990966010400900222556390157232271544072
• The square root of 645673827363138 is 25410112.6987492521
• The cube root of 645673827363138 is 86431.3031079597

Scales and comparisons

• 645,673,827,363,138 seconds is equal to 20,530,430 years, 26 weeks, 3 days, 14 hours, 12 minutes, 18 seconds.
• To count from 1 to 645,673,827,363,138 would take you about fifty-one million, three hundred twenty-six thousand and seventy-six 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 645673827363138 cubic inches would be around 7202.6 feet tall.

Recreational maths with 645673827363138

• 645673827363138 backwards is 831363728376546
• The number of decimal digits it has is: 15
• The sum of 645673827363138's digits is 72
• More coming soon!