131315009

Names of 131315009

• Cardinal: 131315009 can be written as One hundred thirty-one million, three hundred fifteen thousand and nine.

Scientific notation

• Scientific notation: 1.31315009 × 10⁸

Factors of 131315009

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 182239

Divisors of 131315009

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 103 721 182129 1274903 18759287 131315009
• Sum of all divisors σ(n): 151532160
• Sum of proper divisors (its aliquot sum) s(n): 20217151
• 131315009 is a deficient number, because the sum of its proper divisors (20217151) is less than itself. Its deficiency is 111097858

Bases of 131315009

• Binary: 111110100111011010101000001₂
• Hexadecimal: 0x7D3B541
• Base-36: 266JB5

Squares and roots of 131315009

• 131315009 squared (131315009²) is 17243631588670081
• 131315009 cubed (131315009³) is 2264347637258895984545729
• The square root of 131315009 is 11459.2761115177
• The cube root of 131315009 is 508.2820692069

Scales and comparisons

• 131,315,009 seconds is equal to 4 years, 9 weeks, 20 hours, 23 minutes, 29 seconds.
• To count from 1 to 131,315,009 would take you about six years!

  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 131315009 cubic inches would be around 42.4 feet tall.

Recreational maths with 131315009

• 131315009 backwards is 900513131
• The number of decimal digits it has is: 9
• The sum of 131315009's digits is 23
• More coming soon!