13381139

Names of 13381139

• Cardinal: 13381139 can be written as Thirteen million, three hundred eighty-one thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 1.3381139 × 10⁷

Factors of 13381139

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 8940

Divisors of 13381139

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1901 7039 13381139
• Sum of all divisors σ(n): 13390080
• Sum of proper divisors (its aliquot sum) s(n): 8941
• 13381139 is a deficient number, because the sum of its proper divisors (8941) is less than itself. Its deficiency is 13372198

Bases of 13381139

• Binary: 110011000010111000010011₂
• Hexadecimal: 0xCC2E13
• Base-36: 7YSYB

Squares and roots of 13381139

• 13381139 squared (13381139²) is 179054880937321
• 13381139 cubed (13381139³) is 2395958250450742588619
• The square root of 13381139 is 3658.0239200967
• The cube root of 13381139 is 237.4092816961

Scales and comparisons

• 13,381,139 seconds is equal to 22 weeks, 20 hours, 58 minutes, 59 seconds.
• To count from 1 to 13,381,139 would take you about thirty-three 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 13381139 cubic inches would be around 19.8 feet tall.

Recreational maths with 13381139

• 13381139 backwards is 93118331
• The number of decimal digits it has is: 8
• The sum of 13381139's digits is 29
• More coming soon!