18438016856473599

Names of 18438016856473599

• Cardinal: 18438016856473599 can be written as Eighteen quadrillion, four hundred thirty-eight trillion, sixteen billion, eight hundred fifty-six million, four hundred seventy-three thousand, five hundred ninety-nine.

Scientific notation

• Scientific notation: 1.8438016856473599 × 10¹⁶

Factors of 18438016856473599

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 4268146351

Divisors of 18438016856473599

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 7 11 21 33 77 231 18701 56103 130907 205711 392721 617133 1439977 4319931 4268127629 12804382887 29876893403 46949403919 89630680209 140848211757 328645827433 985937482299 79818254789929 239454764369787 558727783529503 878000802689219 1676183350588509 2634002408067657 6146005618824533 18438016856473599
• Sum of all divisors σ(n): 30651848807523840
• Sum of proper divisors (its aliquot sum) s(n): 12213831951050241
• 18438016856473599 is a deficient number, because the sum of its proper divisors (12213831951050241) is less than itself. Its deficiency is 6224184905423358

Bases of 18438016856473599

• Binary: 1000001100000010100011101010101000101111011111111111111₂
• Hexadecimal: 0x4181475517BFFF
• Base-36: 51JQC0CUU4F

Squares and roots of 18438016856473599

• 18438016856473599 squared (18438016856473599²) is 339960465599604577426193784012801
• 18438016856473599 cubed (18438016856473599³) is 6268196795260122282066425213814916107688334540799
• The square root of 18438016856473599 is 135786659.3464674607
• The cube root of 18438016856473599 is 264182.9198724307

Scales and comparisons

• 18,438,016,856,473,599 seconds is equal to 586,271,903 years, 26 weeks, 1 day, 20 hours, 26 minutes, 39 seconds.
• To count from 1 to 18,438,016,856,473,599 would take you about one billion, seven hundred fifty-eight million, eight hundred fifteen thousand, seven hundred ten 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 18438016856473599 cubic inches would be around 22015.2 feet tall.

Recreational maths with 18438016856473599

• 18438016856473599 backwards is 99537465861083481
• The number of decimal digits it has is: 17
• The sum of 18438016856473599's digits is 87
• More coming soon!