18001

Names of 18001

• Cardinal: 18001 can be written as Eighteen thousand and one.

Scientific notation

• Scientific notation: 1.8001 × 10⁴

Factors of 18001

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 430

Divisors of 18001

• Number of divisors d(n): 4
• Complete list of divisors:
  1 47 383 18001
• Sum of all divisors σ(n): 18432
• Sum of proper divisors (its aliquot sum) s(n): 431
• 18001 is a deficient number, because the sum of its proper divisors (431) is less than itself. Its deficiency is 17570

Bases of 18001

• Binary: 100011001010001₂
• Hexadecimal: 0x4651
• Base-36: DW1

Squares and roots of 18001

• 18001 squared (18001²) is 324036001
• 18001 cubed (18001³) is 5832972054001
• The square root of 18001 is 134.1678053781
• The cube root of 18001 is 26.2078992555

Scales and comparisons

• 18,001 seconds is equal to 5 hours, 1 second.
• To count from 1 to 18,001 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 18001 cubic inches would be around 2.2 feet tall.

Recreational maths with 18001

• 18001 backwards is 10081
• The number of decimal digits it has is: 5
• The sum of 18001's digits is 10
• More coming soon!