21664222902

Names of 21664222902

• Cardinal: 21664222902 can be written as Twenty-one billion, six hundred sixty-four million, two hundred twenty-two thousand, nine hundred two.

Scientific notation

• Scientific notation: 2.1664222902 × 10¹⁰

Factors of 21664222902

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 410

Divisors of 21664222902

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 27 38 42 49 54 57 63 81 98 114 126 133 147 162 171 189 266 294 342 378 379 399 441 513 567 758 798 882 931 1026 1134 1137 1197 1323 1539 1862 2274 2394 2646 2653 2793 3078 3411 3591 3969 5306 5586 6822 7182 7201 7938 7959 8379 10233 10773 14402 15918 16758 18571 20466 21546 21603 23877 25137 30699 37142 43206 47754 50274 50407 55713 61398 64809 71631 75411 100814 111426 129618 143262 143641 150822 151221 167139 194427 214893 287282 302442 334278 352849 388854 429786 430923 453663 501417 583281 705698 861846 907326 1002834 1005487 1058547 1166562 1292769 1360989 1504251 2010974 2117094 2585538 2721978 2729179 3008502 3016461 3175641 3878307 4082967 5458358 6032922 6351282 7038409 7756614 8165934 8187537 9049383 9526923 11634921 14076818 16375074 18098766 19053846 19104253 21115227 23269842 24562611 27148149 28580769 38208506 42230454 49125222 54296298 57161538 57312759 63345681 73687833 81444447 114625518 126691362 133729771 147375666 162888894 171938277 190037043 221063499 267459542 343876554 380074086 401189313 442126998 515814831 570111129 802378626 1031629662 1140222258 1203567939 1547444493 2407135878 3094888986 3610703817 7221407634 10832111451 21664222902
• Sum of all divisors σ(n): 59598770220
• Sum of proper divisors (its aliquot sum) s(n): 37934547318
• 21664222902 is an abundant number, because the sum of its proper divisors (37934547318) is greater than itself. Its abundance is 16270324416

Bases of 21664222902

• Binary: 10100001011010010011100111010110110₂
• Hexadecimal: 0x50B49CEB6
• Base-36: 9YABHDI

Squares and roots of 21664222902

• 21664222902 squared (21664222902²) is 469338553947541301604
• 21664222902 cubed (21664222902³) is 10167855049221886772800266134808
• The square root of 21664222902 is 147187.7131488903
• The cube root of 21664222902 is 2787.7107200781

Scales and comparisons

• 21,664,222,902 seconds is equal to 688 years, 44 weeks, 3 days, 7 hours, 41 minutes, 42 seconds.
• To count from 1 to 21,664,222,902 would take you about one thousand, three hundred seventy-seven 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 21664222902 cubic inches would be around 232.3 feet tall.

Recreational maths with 21664222902

• 21664222902 backwards is 20922246612
• The number of decimal digits it has is: 11
• The sum of 21664222902's digits is 36
• More coming soon!