13809221

Names of 13809221

• Cardinal: 13809221 can be written as Thirteen million, eight hundred nine thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.3809221 × 10⁷

Factors of 13809221

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 33222

Divisors of 13809221

• Number of divisors d(n): 4
• Complete list of divisors:
  1 421 32801 13809221
• Sum of all divisors σ(n): 13842444
• Sum of proper divisors (its aliquot sum) s(n): 33223
• 13809221 is a deficient number, because the sum of its proper divisors (33223) is less than itself. Its deficiency is 13775998

Bases of 13809221

• Binary: 110100101011011001000101₂
• Hexadecimal: 0xD2B645
• Base-36: 87Z9H

Squares and roots of 13809221

• 13809221 squared (13809221²) is 190694584626841
• 13809221 cubed (13809221³) is 2633343662615249900861
• The square root of 13809221 is 3716.0760218273
• The cube root of 13809221 is 239.9144428831

Scales and comparisons

• 13,809,221 seconds is equal to 22 weeks, 5 days, 19 hours, 53 minutes, 41 seconds.
• To count from 1 to 13,809,221 would take you about thirty-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 13809221 cubic inches would be around 20 feet tall.

Recreational maths with 13809221

• 13809221 backwards is 12290831
• The number of decimal digits it has is: 8
• The sum of 13809221's digits is 26
• More coming soon!