21078336673728

Names of 21078336673728

• Cardinal: 21078336673728 can be written as Twenty-one trillion, seventy-eight billion, three hundred thirty-six million, six hundred seventy-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1078336673728 × 10¹³

Factors of 21078336673728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 169

Divisors of 21078336673728

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 61 64 72 81 96 103 108 122 144 162 183 192 206 216 244 288 309 324 366 412 432 488 549 576 618 648 732 824 864 927 976 1098 1236 1296 1464 1647 1648 1728 1854 1952 2196 2472 2592 2781 2928 3294 3296 3708 3721 3904 4392 4941 4944 5184 5562 5856 6283 6588 6592 7416 7442 8343 8784 9882 9888 10609 11124 11163 11712 12566 13176 14832 14884 16686 17568 18849 19764 19776 21218 22248 22326 25132 26352 29664 29768 31827 33372 33489 35136 37698 39528 42436 44496 44652 50264 52704 56547 59328 59536 63654 66744 66978 75396 79056 84872 88992 89304 95481 100467 100528 105408 113094 119072 127308 133488 133956 150792 158112 169641 169744 177984 178608 190962 200934 201056 226188 238144 254616 266976 267912 286443 301401 301584 316224 339282 339488 357216 381924 383263 401868 402112 452376 508923 509232 533952 535824 572886 602802 603168 647149 678564 678976 714432 763848 766526 803736 859329 904752 1017846 1018464 1071648 1092727 1145772 1149789 1205604 1206336 1294298 1357128 1527696 1533052 1607472 1718658 1809504 1941447 2035692 2036928 2143296 2185454 2291544 2299578 2411208 2588596 2714256 3055392 3066104 3214944 3278181 3437316 3449367 3619008 3882894 4071384 4370908 4583088 4599156 4822416 5177192 5428512 5824341 6110784 6132208 6429888 6556362 6874632 6898734 7765788 8142768 8741816 9166176 9198312 9644832 9834543 10348101 10354384 10857024 11648682 12264416 13112724 13749264 13797468 15531576 16285536 17473023 17483632 18332352 18396624 19289664 19669086 20696202 20708768 23297364 24528832 26225448 27498528 27594936 29503629 31044303 31063152 32571072 34946046 34967264 36793248 39338172 39476089 41392404 41417536 46594728 52419069 52450896 54997056 55189872 59007258 62088606 62126304 66656347 69892092 69934528 73586496 78676344 78952178 82784808 88510887 93189456 104838138 104901792 110379744 118014516 118428267 124177212 124252608 133312694 139784184 157352688 157904356 165569616 177021774 186378912 199969041 209676276 209803584 220759488 236029032 236856534 248354424 266625388 279568368 314705376 315808712 331139232 354043548 355284801 372757824 399938082 419352552 472058064 473713068 496708848 533250776 559136736 599907123 629410752 631617424 662278464 708087096 710569602 799876164 838705104 944116128 947426136 993417696 1065854403 1066501552 1118273472 1199814246 1263234848 1416174192 1421139204 1599752328 1677410208 1799721369 1888232256 1894852272 1986835392 2131708806 2133003104 2399628492 2526469696 2832348384 2842278408 3197563209 3199504656 3354820416 3599442738 3789704544 4066037167 4263417612 4266006208 4799256984 5399164107 5664696768 5684556816 6395126418 6399009312 7198885476 7579409088 8132074334 8526835224 9598513968 10798328214 11369113632 12198111501 12790252836 12798018624 14397770952 16264148668 17053670448 19197027936 21596656428 22738227264 24396223002 25580505672 28795541904 32528297336 34107340896 36594334503 38394055872 43193312856 48792446004 51161011344 57591083808 65056594672 68214681792 73188669006 86386625712 97584892008 102322022688 109783003509 115182167616 130113189344 146377338012 172773251424 195169784016 204644045376 219566007018 260226378688 292754676024 329349010527 345546502848 390339568032 439132014036 585509352048 658698021054 780679136064 878264028072 1171018704096 1317396042108 1756528056144 2342037408192 2634792084216 3513056112288 5269584168432 7026112224576 10539168336864 21078336673728
• Sum of all divisors σ(n): 64146675861840
• Sum of proper divisors (its aliquot sum) s(n): 43068339188112
• 21078336673728 is an abundant number, because the sum of its proper divisors (43068339188112) is greater than itself. Its abundance is 21990002514384

Bases of 21078336673728

• Binary: 100110010101110101110110001010001011111000000₂
• Hexadecimal: 0x132BAEC517C0
• Base-36: 7GZ95FG00

Squares and roots of 21078336673728

• 21078336673728 squared (21078336673728²) is 444296276931026767125417984
• 21078336673728 cubed (21078336673728³) is 9365026508036073086650116169068231524352
• The square root of 21078336673728 is 4591114.9706501579
• The cube root of 21078336673728 is 27623.5047416455

Scales and comparisons

• 21,078,336,673,728 seconds is equal to 670,225 years, 47 weeks, 1 day, 28 minutes, 48 seconds.
• To count from 1 to 21,078,336,673,728 would take you about one million, six hundred seventy-five thousand, five hundred sixty-four 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 21078336673728 cubic inches would be around 2302 feet tall.

Recreational maths with 21078336673728

• 21078336673728 backwards is 82737663387012
• The number of decimal digits it has is: 14
• The sum of 21078336673728's digits is 63
• More coming soon!