13209231

Names of 13209231

• Cardinal: 13209231 can be written as Thirteen million, two hundred nine thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 1.3209231 × 10⁷

Factors of 13209231

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 629021

Divisors of 13209231

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 7 21 629011 1887033 4403077 13209231
• Sum of all divisors σ(n): 20128384
• Sum of proper divisors (its aliquot sum) s(n): 6919153
• 13209231 is a deficient number, because the sum of its proper divisors (6919153) is less than itself. Its deficiency is 6290078

Bases of 13209231

• Binary: 110010011000111010001111₂
• Hexadecimal: 0xC98E8F
• Base-36: 7V4B3

Squares and roots of 13209231

• 13209231 squared (13209231²) is 174483783611361
• 13209231 cubed (13209231³) is 2304796603476481673391
• The square root of 13209231 is 3634.4505774601
• The cube root of 13209231 is 236.3882279461

Scales and comparisons

• 13,209,231 seconds is equal to 21 weeks, 5 days, 21 hours, 13 minutes, 51 seconds.
• To count from 1 to 13,209,231 would take you about thirty-two 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 13209231 cubic inches would be around 19.7 feet tall.

Recreational maths with 13209231

• 13209231 backwards is 13290231
• 13209231 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13209231's digits is 21
• More coming soon!