20018

Names of 20018

• Cardinal: 20018 can be written as Twenty thousand and eighteen.

Scientific notation

• Scientific notation: 2.0018 × 10⁴

Factors of 20018

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10011

Divisors of 20018

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10009 20018
• Sum of all divisors σ(n): 30030
• Sum of proper divisors (its aliquot sum) s(n): 10012
• 20018 is a deficient number, because the sum of its proper divisors (10012) is less than itself. Its deficiency is 10006

Bases of 20018

• Binary: 100111000110010₂
• Hexadecimal: 0x4E32
• Base-36: FG2

Squares and roots of 20018

• 20018 squared (20018²) is 400720324
• 20018 cubed (20018³) is 8021619445832
• The square root of 20018 is 141.4849815351
• The cube root of 20018 is 27.1523169771

Scales and comparisons

• 20,018 seconds is equal to 5 hours, 33 minutes, 38 seconds.
• To count from 1 to 20,018 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 20018 cubic inches would be around 2.3 feet tall.

Recreational maths with 20018

• 20018 backwards is 81002
• The number of decimal digits it has is: 5
• The sum of 20018's digits is 11
• More coming soon!