13009705

Names of 13009705

• Cardinal: 13009705 can be written as Thirteen million, nine thousand, seven hundred five.

Scientific notation

• Scientific notation: 1.3009705 × 10⁷

Factors of 13009705

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 18863

Divisors of 13009705

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 139 695 18719 93595 2601941 13009705
• Sum of all divisors σ(n): 15724800
• Sum of proper divisors (its aliquot sum) s(n): 2715095
• 13009705 is a deficient number, because the sum of its proper divisors (2715095) is less than itself. Its deficiency is 10294610

Bases of 13009705

• Binary: 110001101000001100101001₂
• Hexadecimal: 0xC68329
• Base-36: 7QUCP

Squares and roots of 13009705

• 13009705 squared (13009705²) is 169252424187025
• 13009705 cubed (13009705³) is 2201924109208060077625
• The square root of 13009705 is 3606.8968657283
• The cube root of 13009705 is 235.1919662769

Scales and comparisons

• 13,009,705 seconds is equal to 21 weeks, 3 days, 13 hours, 48 minutes, 25 seconds.
• To count from 1 to 13,009,705 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 13009705 cubic inches would be around 19.6 feet tall.

Recreational maths with 13009705

• 13009705 backwards is 50790031
• The number of decimal digits it has is: 8
• The sum of 13009705's digits is 25
• More coming soon!