18420644508924015

Names of 18420644508924015

• Cardinal: 18420644508924015 can be written as Eighteen quadrillion, four hundred twenty trillion, six hundred forty-four billion, five hundred eight million, nine hundred twenty-four thousand and fifteen.

Scientific notation

• Scientific notation: 1.8420644508924015 × 10¹⁶

Factors of 18420644508924015

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 44654484301

Divisors of 18420644508924015

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 15 45 89 103 267 309 445 515 801 927 1335 1545 4005 4635 9167 27501 45835 82503 137505 412515 44654484101 133963452303 223272420505 401890356909 669817261515 2009451784545 3974249084989 4599411862403 11922747254967 13798235587209 19871245424945 22997059312015 35768241764901 41394706761627 59613736274835 68991177936045 178841208824505 206973533808135 409347655753867 1228042967261601 2046738278769335 3684128901784803 6140214836308005 18420644508924015
• Sum of all divisors σ(n): 32601345753188160
• Sum of proper divisors (its aliquot sum) s(n): 14180701244264145
• 18420644508924015 is a deficient number, because the sum of its proper divisors (14180701244264145) is less than itself. Its deficiency is 4239943264659870

Bases of 18420644508924015

• Binary: 1000001011100010111101010000100011111001111100001101111₂
• Hexadecimal: 0x41717A847CF86F
• Base-36: 51DKN9HNZHR

Squares and roots of 18420644508924015

• 18420644508924015 squared (18420644508924015²) is 339320144124152465734973043720225
• 18420644508924015 cubed (18420644508924015³) is 6250495749627874491068468121959107651767443703375
• The square root of 18420644508924015 is 135722674.9991467527
• The cube root of 18420644508924015 is 264099.9225215897

Scales and comparisons

• 18,420,644,508,924,015 seconds is equal to 585,719,516 years, 30 weeks, 4 days, 11 hours, 20 minutes, 15 seconds.
• To count from 1 to 18,420,644,508,924,015 would take you about one billion, seven hundred fifty-seven million, one hundred fifty-eight thousand, five hundred forty-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 18420644508924015 cubic inches would be around 22008.3 feet tall.

Recreational maths with 18420644508924015

• 18420644508924015 backwards is 51042980544602481
• The number of decimal digits it has is: 17
• The sum of 18420644508924015's digits is 63
• More coming soon!