10805

Names of 10805

• Cardinal: 10805 can be written as Ten thousand, eight hundred five.

Scientific notation

• Scientific notation: 1.0805 × 10⁴

Factors of 10805

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2166

Divisors of 10805

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 2161 10805
• Sum of all divisors σ(n): 12972
• Sum of proper divisors (its aliquot sum) s(n): 2167
• 10805 is a deficient number, because the sum of its proper divisors (2167) is less than itself. Its deficiency is 8638

Bases of 10805

• Binary: 10101000110101₂
• Hexadecimal: 0x2A35
• Base-36: 8C5

Squares and roots of 10805

• 10805 squared (10805²) is 116748025
• 10805 cubed (10805³) is 1261462410125
• The square root of 10805 is 103.9471019317
• The cube root of 10805 is 22.1075996059

Scales and comparisons

• 10,805 seconds is equal to 3 hours, 5 seconds.
• To count from 1 to 10,805 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 10805 cubic inches would be around 1.8 feet tall.

Recreational maths with 10805

• 10805 backwards is 50801
• The number of decimal digits it has is: 5
• The sum of 10805's digits is 14
• More coming soon!