12855

Names of 12855

• Cardinal: 12855 can be written as Twelve thousand, eight hundred fifty-five.

Scientific notation

• Scientific notation: 1.2855 × 10⁴

Factors of 12855

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 865

Divisors of 12855

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 857 2571 4285 12855
• Sum of all divisors σ(n): 20592
• Sum of proper divisors (its aliquot sum) s(n): 7737
• 12855 is a deficient number, because the sum of its proper divisors (7737) is less than itself. Its deficiency is 5118

Bases of 12855

• Binary: 11001000110111₂
• Hexadecimal: 0x3237
• Base-36: 9X3

Squares and roots of 12855

• 12855 squared (12855²) is 165251025
• 12855 cubed (12855³) is 2124301926375
• The square root of 12855 is 113.3798923971
• The cube root of 12855 is 23.4255984017

Scales and comparisons

• 12,855 seconds is equal to 3 hours, 34 minutes, 15 seconds.
• To count from 1 to 12,855 would take you about three hours.

  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 12855 cubic inches would be around 2 feet tall.

Recreational maths with 12855

• 12855 backwards is 55821
• The number of decimal digits it has is: 5
• The sum of 12855's digits is 21
• More coming soon!