13042939

Names of 13042939

• Cardinal: 13042939 can be written as Thirteen million, forty-two thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 1.3042939 × 10⁷

Factors of 13042939

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 143349

Divisors of 13042939

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 13 91 143329 1003303 1863277 13042939
• Sum of all divisors σ(n): 16052960
• Sum of proper divisors (its aliquot sum) s(n): 3010021
• 13042939 is a deficient number, because the sum of its proper divisors (3010021) is less than itself. Its deficiency is 10032918

Bases of 13042939

• Binary: 110001110000010011111011₂
• Hexadecimal: 0xC704FB
• Base-36: 7RJZV

Squares and roots of 13042939

• 13042939 squared (13042939²) is 170118257757721
• 13042939 cubed (13042939³) is 2218842058720231782019
• The square root of 13042939 is 3611.5009345147
• The cube root of 13042939 is 235.3920662139

Scales and comparisons

• 13,042,939 seconds is equal to 21 weeks, 3 days, 23 hours, 2 minutes, 19 seconds.
• To count from 1 to 13,042,939 would take you about thirty-two 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 13042939 cubic inches would be around 19.6 feet tall.

Recreational maths with 13042939

• 13042939 backwards is 93924031
• The number of decimal digits it has is: 8
• The sum of 13042939's digits is 31
• More coming soon!