12855845

Names of 12855845

• Cardinal: 12855845 can be written as Twelve million, eight hundred fifty-five thousand, eight hundred forty-five.

Scientific notation

• Scientific notation: 1.2855845 × 10⁷

Factors of 12855845

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 88695

Divisors of 12855845

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 29 145 88661 443305 2571169 12855845
• Sum of all divisors σ(n): 15959160
• Sum of proper divisors (its aliquot sum) s(n): 3103315
• 12855845 is a deficient number, because the sum of its proper divisors (3103315) is less than itself. Its deficiency is 9752530

Bases of 12855845

• Binary: 110001000010101000100101₂
• Hexadecimal: 0xC42A25
• Base-36: 7NJMT

Squares and roots of 12855845

• 12855845 squared (12855845²) is 165272750664025
• 12855845 cubed (12855845³) is 2124720865260352476125
• The square root of 12855845 is 3585.5048459039
• The cube root of 12855845 is 234.2611167025

Scales and comparisons

• 12,855,845 seconds is equal to 21 weeks, 1 day, 19 hours, 4 minutes, 5 seconds.
• To count from 1 to 12,855,845 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 12855845 cubic inches would be around 19.5 feet tall.

Recreational maths with 12855845

• 12855845 backwards is 54855821
• The number of decimal digits it has is: 8
• The sum of 12855845's digits is 38
• More coming soon!