131243986

Names of 131243986

• Cardinal: 131243986 can be written as One hundred thirty-one million, two hundred forty-three thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 1.31243986 × 10⁸

Factors of 131243986

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 132008

Divisors of 131243986

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 499 998 131507 263014 65621993 131243986
• Sum of all divisors σ(n): 197262000
• Sum of proper divisors (its aliquot sum) s(n): 66018014
• 131243986 is a deficient number, because the sum of its proper divisors (66018014) is less than itself. Its deficiency is 65225972

Bases of 131243986

• Binary: 111110100101001111111010010₂
• Hexadecimal: 0x7D29FD2
• Base-36: 2650IA

Squares and roots of 131243986

• 131243986 squared (131243986²) is 17224983861168196
• 131243986 cubed (131243986³) is 2260675540725384659469256
• The square root of 131243986 is 11456.1767619045
• The cube root of 131243986 is 508.1904162473

Scales and comparisons

• 131,243,986 seconds is equal to 4 years, 9 weeks, 39 minutes, 46 seconds.
• To count from 1 to 131,243,986 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 131243986 cubic inches would be around 42.3 feet tall.

Recreational maths with 131243986

• 131243986 backwards is 689342131
• The number of decimal digits it has is: 9
• The sum of 131243986's digits is 37
• More coming soon!