21331183807791

Names of 21331183807791

• Cardinal: 21331183807791 can be written as Twenty-one trillion, three hundred thirty-one billion, one hundred eighty-three million, eight hundred seven thousand, seven hundred ninety-one.

Scientific notation

• Scientific notation: 2.1331183807791 × 10¹³

Factors of 21331183807791

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 407

Divisors of 21331183807791

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 9 11 13 27 33 39 73 99 117 121 143 219 297 307 351 363 429 657 803 921 949 1089 1287 1573 1971 2409 2763 2847 3267 3377 3861 3991 4719 5329 7227 8289 8541 8833 10131 10439 11973 14157 15987 21681 22411 25623 26499 30393 31317 35919 37147 42471 43901 47961 58619 67233 69277 79497 91179 93951 94249 107757 111441 114829 131703 143883 175857 201699 207831 238491 246521 281853 282747 291343 334323 344487 395109 482911 527571 605097 623493 644809 739563 762047 848241 874029 1002969 1033461 1036739 1185327 1225237 1448733 1582713 1636003 1870479 1934427 2218689 2286141 2544723 2622087 2711731 3100383 3110217 3204773 3675711 4346199 4908009 5803281 6656067 6858423 6880177 7866261 8135193 8382517 9330651 9614319 11027133 11404129 13038597 13477607 14724027 17409843 17996033 20575269 20640531 21268039 24405579 25147551 27991953 28842957 33081399 34212387 35252503 40432821 44172081 53988099 61921593 63804117 73216737 75442653 75681947 86528871 89442301 102637161 105757509 121298463 148253677 161964297 185764779 191412351 197956363 226327959 227045841 233948429 268326903 307911483 317272527 363895389 444761031 485892891 502252921 574237053 593869089 681137523 701845287 804980709 832501417 951817581 983865311 1334283093 1506758763 1781607267 2043412569 2105535861 2414942127 2497504251 2573432719 2951595933 4002849279 4520276289 5344821801 5524782131 6316607583 6529287973 7492512753 7720298157 8854787799 10822518421 13560828867 16574346393 19587863919 22477538259 23160894471 26564363397 32467555263 49723039179 58763591757 60772603441 69482683413 71822167703 97402665789 149169117537 176290775271 182317810323 215466503109 292207997367 546953430969 646399509327 790043844733 1640860292907 1939198527981 2370131534199 7110394602597 21331183807791
• Sum of all divisors σ(n): 38051196760080
• Sum of proper divisors (its aliquot sum) s(n): 16720012952289
• 21331183807791 is a deficient number, because the sum of its proper divisors (16720012952289) is less than itself. Its deficiency is 4611170855502

Bases of 21331183807791

• Binary: 100110110011010001101101000100010110100101111₂
• Hexadecimal: 0x13668DA22D2F
• Base-36: 7K7ES319R

Squares and roots of 21331183807791

• 21331183807791 squared (21331183807791²) is 455019402641764946032299681
• 21331183807791 cubed (21331183807791³) is 9706102513862749786194055926630014614671
• The square root of 21331183807791 is 4618569.4546895145
• The cube root of 21331183807791 is 27733.5194441321

Scales and comparisons

• 21,331,183,807,791 seconds is equal to 678,265 years, 34 weeks, 3 days, 11 hours, 29 minutes, 51 seconds.
• To count from 1 to 21,331,183,807,791 would take you about one million, six hundred ninety-five thousand, six 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 21331183807791 cubic inches would be around 2311.1 feet tall.

Recreational maths with 21331183807791

• 21331183807791 backwards is 19770838113312
• The number of decimal digits it has is: 14
• The sum of 21331183807791's digits is 54
• More coming soon!