18089621

Names of 18089621

• Cardinal: 18089621 can be written as Eighteen million, eighty-nine thousand, six hundred twenty-one.

Scientific notation

• Scientific notation: 1.8089621 × 10⁷

Factors of 18089621

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 13602

Divisors of 18089621

• Number of divisors d(n): 8
• Complete list of divisors:
  1 11 121 1331 13591 149501 1644511 18089621
• Sum of all divisors σ(n): 19898688
• Sum of proper divisors (its aliquot sum) s(n): 1809067
• 18089621 is a deficient number, because the sum of its proper divisors (1809067) is less than itself. Its deficiency is 16280554

Bases of 18089621

• Binary: 1000101000000011010010101₂
• Hexadecimal: 0x1140695
• Base-36: ARQ1H

Squares and roots of 18089621

• 18089621 squared (18089621²) is 327234387923641
• 18089621 cubed (18089621³) is 5919546055705642630061
• The square root of 18089621 is 4253.1895090625
• The cube root of 18089621 is 262.5083704059

Scales and comparisons

• 18,089,621 seconds is equal to 29 weeks, 6 days, 8 hours, 53 minutes, 41 seconds.
• To count from 1 to 18,089,621 would take you about forty-four weeks!

  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 18089621 cubic inches would be around 21.9 feet tall.

Recreational maths with 18089621

• 18089621 backwards is 12698081
• The number of decimal digits it has is: 8
• The sum of 18089621's digits is 35
• More coming soon!