12889930

Names of 12889930

• Cardinal: 12889930 can be written as Twelve million, eight hundred eighty-nine thousand, nine hundred thirty.

Scientific notation

• Scientific notation: 1.288993 × 10⁷

Factors of 12889930

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1289000

Divisors of 12889930

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1288993 2577986 6444965 12889930
• Sum of all divisors σ(n): 23201892
• Sum of proper divisors (its aliquot sum) s(n): 10311962
• 12889930 is a deficient number, because the sum of its proper divisors (10311962) is less than itself. Its deficiency is 2577968

Bases of 12889930

• Binary: 110001001010111101001010₂
• Hexadecimal: 0xC4AF4A
• Base-36: 7O9XM

Squares and roots of 12889930

• 12889930 squared (12889930²) is 166150295404900
• 12889930 cubed (12889930³) is 2141665677248482657000
• The square root of 12889930 is 3590.2548656049
• The cube root of 12889930 is 234.4679679773

Scales and comparisons

• 12,889,930 seconds is equal to 21 weeks, 2 days, 4 hours, 32 minutes, 10 seconds.
• To count from 1 to 12,889,930 would take you about thirty-one 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 12889930 cubic inches would be around 19.5 feet tall.

Recreational maths with 12889930

• 12889930 backwards is 03998821
• The number of decimal digits it has is: 8
• The sum of 12889930's digits is 40
• More coming soon!