13991278

Names of 13991278

• Cardinal: 13991278 can be written as Thirteen million, nine hundred ninety-one thousand, two hundred seventy-eight.

Scientific notation

• Scientific notation: 1.3991278 × 10⁷

Factors of 13991278

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 999386

Divisors of 13991278

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 999377 1998754 6995639 13991278
• Sum of all divisors σ(n): 23985072
• Sum of proper divisors (its aliquot sum) s(n): 9993794
• 13991278 is a deficient number, because the sum of its proper divisors (9993794) is less than itself. Its deficiency is 3997484

Bases of 13991278

• Binary: 110101010111110101101110₂
• Hexadecimal: 0xD57D6E
• Base-36: 8BVQM

Squares and roots of 13991278

• 13991278 squared (13991278²) is 195755860073284
• 13991278 cubed (13991278³) is 2738874658414416816952
• The square root of 13991278 is 3740.4916789107
• The cube root of 13991278 is 240.9641653991

Scales and comparisons

• 13,991,278 seconds is equal to 23 weeks, 22 hours, 27 minutes, 58 seconds.
• To count from 1 to 13,991,278 would take you about thirty-four 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 13991278 cubic inches would be around 20.1 feet tall.

Recreational maths with 13991278

• 13991278 backwards is 87219931
• The number of decimal digits it has is: 8
• The sum of 13991278's digits is 40
• More coming soon!