18042109549646399

Names of 18042109549646399

• Cardinal: 18042109549646399 can be written as Eighteen quadrillion, forty-two trillion, one hundred nine billion, five hundred forty-nine million, six hundred forty-six thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 1.8042109549646399 × 10¹⁶

Factors of 18042109549646399

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 488831

Divisors of 18042109549646399

• Number of divisors d(n): 32
• Complete list of divisors:
  1 7 53 371 1069 7483 56657 125651 362051 396599 879557 2534357 6659503 19188703 46616521 134320919 134320921 387032519 940246433 2709227633 7119008707 20512723507 45492070201 49833060949 143589064549 318444491407 2411079720653 16877558044571 48631023044869 340417161314083 2577444221378057 18042109549646399
• Sum of all divisors σ(n): 21028479965544960
• Sum of proper divisors (its aliquot sum) s(n): 2986370415898561
• 18042109549646399 is a deficient number, because the sum of its proper divisors (2986370415898561) is less than itself. Its deficiency is 15055739133747838

Bases of 18042109549646399

• Binary: 1000000000110010011001111111010101101001001001000111111₂
• Hexadecimal: 0x401933FAB4923F
• Base-36: 4XNE6PCE8FZ

Squares and roots of 18042109549646399

• 18042109549646399 squared (18042109549646399²) is 325517717001441786542145933667201
• 18042109549646399 cubed (18042109549646399³) is 5873026310490806830491685810147584339578894059199
• The square root of 18042109549646399 is 134320919.9999999963
• The cube root of 18042109549646399 is 262278.3473717293

Scales and comparisons

• 18,042,109,549,646,399 seconds is equal to 573,683,275 years, 40 weeks, 3 hours, 59 minutes, 59 seconds.
• To count from 1 to 18,042,109,549,646,399 would take you about one billion, seven hundred twenty-one million, forty-nine thousand, eight hundred twenty-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 18042109549646399 cubic inches would be around 21856.5 feet tall.

Recreational maths with 18042109549646399

• 18042109549646399 backwards is 99364694590124081
• The number of decimal digits it has is: 17
• The sum of 18042109549646399's digits is 80
• More coming soon!