18109

Names of 18109

• Cardinal: 18109 can be written as Eighteen thousand, one hundred nine.

Scientific notation

• Scientific notation: 1.8109 × 10⁴

Factors of 18109

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 219

Divisors of 18109

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 13 91 199 1393 2587 18109
• Sum of all divisors σ(n): 22400
• Sum of proper divisors (its aliquot sum) s(n): 4291
• 18109 is a deficient number, because the sum of its proper divisors (4291) is less than itself. Its deficiency is 13818

Bases of 18109

• Binary: 100011010111101₂
• Hexadecimal: 0x46BD
• Base-36: DZ1

Squares and roots of 18109

• 18109 squared (18109²) is 327935881
• 18109 cubed (18109³) is 5938590869029
• The square root of 18109 is 134.5696845505
• The cube root of 18109 is 26.2602076703

Scales and comparisons

• 18,109 seconds is equal to 5 hours, 1 minute, 49 seconds.
• To count from 1 to 18,109 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 18109 cubic inches would be around 2.2 feet tall.

Recreational maths with 18109

• 18109 backwards is 90181
• The number of decimal digits it has is: 5
• The sum of 18109's digits is 19
• More coming soon!