131388238

Names of 131388238

• Cardinal: 131388238 can be written as One hundred thirty-one million, three hundred eighty-eight thousand, two hundred thirty-eight.

Scientific notation

• Scientific notation: 1.31388238 × 10⁸

Factors of 131388238

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 65694121

Divisors of 131388238

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 65694119 131388238
• Sum of all divisors σ(n): 197082360
• Sum of proper divisors (its aliquot sum) s(n): 65694122
• 131388238 is a deficient number, because the sum of its proper divisors (65694122) is less than itself. Its deficiency is 65694116

Bases of 131388238

• Binary: 111110101001101001101001110₂
• Hexadecimal: 0x7D4D34E
• Base-36: 2683TA

Squares and roots of 131388238

• 131388238 squared (131388238²) is 17262869084744644
• 131388238 cubed (131388238³) is 2268137951869271455097272
• The square root of 131388238 is 11462.4708505629
• The cube root of 131388238 is 508.3765343439

Scales and comparisons

• 131,388,238 seconds is equal to 4 years, 9 weeks, 1 day, 16 hours, 43 minutes, 58 seconds.
• To count from 1 to 131,388,238 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 131388238 cubic inches would be around 42.4 feet tall.

Recreational maths with 131388238

• 131388238 backwards is 832883131
• The number of decimal digits it has is: 9
• The sum of 131388238's digits is 37
• More coming soon!