21064263129

Names of 21064263129

• Cardinal: 21064263129 can be written as Twenty-one billion, sixty-four million, two hundred sixty-three thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1064263129 × 10¹⁰

Factors of 21064263129

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 211

Divisors of 21064263129

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 7 9 13 21 29 31 39 49 61 63 67 87 91 93 117 147 183 201 203 217 261 273 279 377 403 427 441 469 549 603 609 637 651 793 819 871 899 1131 1209 1281 1407 1421 1519 1769 1827 1891 1911 1943 1953 2077 2379 2613 2639 2697 2821 2989 3283 3393 3627 3843 4087 4221 4263 4557 5307 5551 5673 5733 5829 6097 6231 6293 7137 7839 7917 8091 8463 8967 9849 11687 12261 12383 12789 13237 13601 13671 14539 15921 16653 17019 17487 18291 18473 18693 18879 19747 22997 23751 24583 25259 25389 26901 27001 28609 29547 35061 36783 37149 38857 39711 40803 42679 43617 44051 49959 53131 54839 54873 55419 56637 59241 60233 68991 73749 75777 81003 81809 85827 86681 92659 95207 101773 105183 111447 116571 118523 119133 122409 126697 128037 130851 132153 159393 160979 164517 166257 172081 176813 177723 180699 189007 200263 206973 221247 227331 243009 245427 257481 260043 277977 285621 305319 349713 355569 371917 380091 383873 384111 396459 421631 478179 482937 493551 516243 530439 542097 567021 572663 600789 712907 736281 780129 783029 829661 833931 856863 886879 915957 1066707 1115751 1126853 1140273 1151619 1204567 1237691 1264893 1323049 1448811 1540799 1548729 1591317 1647061 1701063 1717989 1802367 2138721 2349087 2488983 2603419 2660637 2687111 2951417 3347253 3380559 3454857 3613701 3674213 3713073 3794679 3969147 4622397 4941183 4990349 5153967 5481203 5807627 6208153 6416163 7047261 7466949 7810257 7981911 8061333 8854251 10141677 10785593 10841103 11022639 11139219 11529427 11907441 13867191 14823549 14971047 16443609 17422881 18624459 23430771 24183999 25719491 26562753 32356779 33067917 34588281 34932443 38368421 44913141 47764769 49330827 52268643 55873377 75499151 77158473 80705989 97070337 103764843 104797329 115105263 143294307 180036437 226497453 231475419 242117967 314391987 334353383 345315789 429882921 540109311 679492359 726353901 1003060149 1620327933 2340473681 3009180447 7021421043 21064263129
• Sum of all divisors σ(n): 41987312640
• Sum of proper divisors (its aliquot sum) s(n): 20923049511
• 21064263129 is a deficient number, because the sum of its proper divisors (20923049511) is less than itself. Its deficiency is 141213618

Bases of 21064263129

• Binary: 10011100111100001110010010111011001₂
• Hexadecimal: 0x4E78725D9
• Base-36: 9OD49G9

Squares and roots of 21064263129

• 21064263129 squared (21064263129²) is 443703181167748870641
• 21064263129 cubed (21064263129³) is 9346280559291819699774606895689
• The square root of 21064263129 is 145135.3269504017
• The cube root of 21064263129 is 2761.7355502737

Scales and comparisons

• 21,064,263,129 seconds is equal to 669 years, 40 weeks, 3 days, 8 hours, 12 minutes, 9 seconds.
• To count from 1 to 21,064,263,129 would take you about one thousand, three hundred thirty-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 21064263129 cubic inches would be around 230.1 feet tall.

Recreational maths with 21064263129

• 21064263129 backwards is 92136246012
• The number of decimal digits it has is: 11
• The sum of 21064263129's digits is 36
• More coming soon!