18015

Names of 18015

• Cardinal: 18015 can be written as Eighteen thousand and fifteen.

Scientific notation

• Scientific notation: 1.8015 × 10⁴

Factors of 18015

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1209

Divisors of 18015

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 1201 3603 6005 18015
• Sum of all divisors σ(n): 28848
• Sum of proper divisors (its aliquot sum) s(n): 10833
• 18015 is a deficient number, because the sum of its proper divisors (10833) is less than itself. Its deficiency is 7182

Bases of 18015

• Binary: 100011001011111₂
• Hexadecimal: 0x465F
• Base-36: DWF

Squares and roots of 18015

• 18015 squared (18015²) is 324540225
• 18015 cubed (18015³) is 5846592153375
• The square root of 18015 is 134.2199687081
• The cube root of 18015 is 26.2146917579

Scales and comparisons

• 18,015 seconds is equal to 5 hours, 15 seconds.
• To count from 1 to 18,015 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 18015 cubic inches would be around 2.2 feet tall.

Recreational maths with 18015

• 18015 backwards is 51081
• 18015 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 18015's digits is 15
• More coming soon!