21017343471971

Names of 21017343471971

• Cardinal: 21017343471971 can be written as Twenty-one trillion, seventeen billion, three hundred forty-three million, four hundred seventy-one thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 2.1017343471971 × 10¹³

Factors of 21017343471971

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 584

Divisors of 21017343471971

• Number of divisors d(n): 90
• Complete list of divisors:
  1 7 11 19 49 77 133 209 361 539 547 931 1463 2527 3829 3971 6017 6859 10241 10393 17689 26803 27797 42119 48013 72751 75449 114323 130321 194579 197467 294833 299209 336091 509257 528143 800261 912247 1382269 1433531 2094463 2172137 3291299 3697001 3751873 5601827 5684971 6385729 9675883 10034717 14661241 15204959 23039093 26263111 39794797 41270603 62534681 70243019 71285587 106434713 108014449 161273651 183841777 278563579 288894221 437742767 498999109 756101143 784141457 1188158939 2022259547 2052274531 3064199369 3492993763 5292708001 5488990199 8317112573 14365921717 22575019841 38422931393 38993216089 58219788011 100561452019 158025138887 272952512623 428925376979 1106175972209 1910667588361 3002477638853 21017343471971
• Sum of all divisors σ(n): 28204652911068
• Sum of proper divisors (its aliquot sum) s(n): 7187309439097
• 21017343471971 is a deficient number, because the sum of its proper divisors (7187309439097) is less than itself. Its deficiency is 13830034032874

Bases of 21017343471971

• Binary: 100110001110101111011010010101011000101100011₂
• Hexadecimal: 0x131D7B4AB163
• Base-36: 7G78FNGBN

Squares and roots of 21017343471971

• 21017343471971 squared (21017343471971²) is 441728726618802008862624841
• 21017343471971 cubed (21017343471971³) is 9283964368783740900357429088519371831611
• The square root of 21017343471971 is 4584467.6323397681
• The cube root of 21017343471971 is 27596.8348046953

Scales and comparisons

• 21,017,343,471,971 seconds is equal to 668,286 years, 26 weeks, 4 days, 4 hours, 26 minutes, 11 seconds.
• To count from 1 to 21,017,343,471,971 would take you about one million, six hundred seventy thousand, seven hundred sixteen 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 21017343471971 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21017343471971

• 21017343471971 backwards is 17917434371012
• The number of decimal digits it has is: 14
• The sum of 21017343471971's digits is 50
• More coming soon!