131138389

Names of 131138389

• Cardinal: 131138389 can be written as One hundred thirty-one million, one hundred thirty-eight thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 1.31138389 × 10⁸

Factors of 131138389

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 34634

Divisors of 131138389

• Number of divisors d(n): 4
• Complete list of divisors:
  1 4327 30307 131138389
• Sum of all divisors σ(n): 131173024
• Sum of proper divisors (its aliquot sum) s(n): 34635
• 131138389 is a deficient number, because the sum of its proper divisors (34635) is less than itself. Its deficiency is 131103754

Bases of 131138389

• Binary: 111110100010000001101010101₂
• Hexadecimal: 0x7D10355
• Base-36: 262R11

Squares and roots of 131138389

• 131138389 squared (131138389²) is 17197277069515321
• 131138389 cubed (131138389³) is 2255223210082880206757869
• The square root of 131138389 is 11451.5670980001
• The cube root of 131138389 is 508.0540854745

Scales and comparisons

• 131,138,389 seconds is equal to 4 years, 8 weeks, 5 days, 19 hours, 19 minutes, 49 seconds.
• To count from 1 to 131,138,389 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 131138389 cubic inches would be around 42.3 feet tall.

Recreational maths with 131138389

• 131138389 backwards is 983831131
• The number of decimal digits it has is: 9
• The sum of 131138389's digits is 37
• More coming soon!