12981616

Names of 12981616

• Cardinal: 12981616 can be written as Twelve million, nine hundred eighty-one thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 1.2981616 × 10⁷

Factors of 12981616

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 811353

Divisors of 12981616

• Number of divisors d(n): 10
• Complete list of divisors:
  1 2 4 8 16 811351 1622702 3245404 6490808 12981616
• Sum of all divisors σ(n): 25151912
• Sum of proper divisors (its aliquot sum) s(n): 12170296
• 12981616 is a deficient number, because the sum of its proper divisors (12170296) is less than itself. Its deficiency is 811320

Bases of 12981616

• Binary: 110001100001010101110000₂
• Hexadecimal: 0xC61570
• Base-36: 7Q8OG

Squares and roots of 12981616

• 12981616 squared (12981616²) is 168522353971456
• 12981616 cubed (12981616³) is 2187692486673516752896
• The square root of 12981616 is 3603.0009714125
• The cube root of 12981616 is 235.0225781837

Scales and comparisons

• 12,981,616 seconds is equal to 21 weeks, 3 days, 6 hours, 16 seconds.
• To count from 1 to 12,981,616 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 12981616 cubic inches would be around 19.6 feet tall.

Recreational maths with 12981616

• 12981616 backwards is 61618921
• The number of decimal digits it has is: 8
• The sum of 12981616's digits is 34
• More coming soon!