18385

Names of 18385

• Cardinal: 18385 can be written as Eighteen thousand, three hundred eighty-five.

Scientific notation

• Scientific notation: 1.8385 × 10⁴

Factors of 18385

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3682

Divisors of 18385

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 3677 18385
• Sum of all divisors σ(n): 22068
• Sum of proper divisors (its aliquot sum) s(n): 3683
• 18385 is a deficient number, because the sum of its proper divisors (3683) is less than itself. Its deficiency is 14702

Bases of 18385

• Binary: 100011111010001₂
• Hexadecimal: 0x47D1
• Base-36: E6P

Squares and roots of 18385

• 18385 squared (18385²) is 338008225
• 18385 cubed (18385³) is 6214281216625
• The square root of 18385 is 135.5912976557
• The cube root of 18385 is 26.3929465393

Scales and comparisons

• 18,385 seconds is equal to 5 hours, 6 minutes, 25 seconds.
• To count from 1 to 18,385 would take you about five hours.

  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 18385 cubic inches would be around 2.2 feet tall.

Recreational maths with 18385

• 18385 backwards is 58381
• The number of decimal digits it has is: 5
• The sum of 18385's digits is 25
• More coming soon!