21064

Names of 21064

• Cardinal: 21064 can be written as Twenty-one thousand and sixty-four.

Scientific notation

• Scientific notation: 2.1064 × 10⁴

Factors of 21064

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 2635

Divisors of 21064

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 2633 5266 10532 21064
• Sum of all divisors σ(n): 39510
• Sum of proper divisors (its aliquot sum) s(n): 18446
• 21064 is a deficient number, because the sum of its proper divisors (18446) is less than itself. Its deficiency is 2618

Bases of 21064

• Binary: 101001001001000₂
• Hexadecimal: 0x5248
• Base-36: G94

Squares and roots of 21064

• 21064 squared (21064²) is 443692096
• 21064 cubed (21064³) is 9345930310144
• The square root of 21064 is 145.1344204523
• The cube root of 21064 is 27.6172405061

Scales and comparisons

• 21,064 seconds is equal to 5 hours, 51 minutes, 4 seconds.
• To count from 1 to 21,064 would take you about five 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 21064 cubic inches would be around 2.3 feet tall.

Recreational maths with 21064

• 21064 backwards is 46012
• The number of decimal digits it has is: 5
• The sum of 21064's digits is 13
• More coming soon!