21170

Names of 21170

• Cardinal: 21170 can be written as Twenty-one thousand, one hundred seventy.

Scientific notation

• Scientific notation: 2.117 × 10⁴

Factors of 21170

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 109

Divisors of 21170

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 5 10 29 58 73 145 146 290 365 730 2117 4234 10585 21170
• Sum of all divisors σ(n): 39960
• Sum of proper divisors (its aliquot sum) s(n): 18790
• 21170 is a deficient number, because the sum of its proper divisors (18790) is less than itself. Its deficiency is 2380

Bases of 21170

• Binary: 101001010110010₂
• Hexadecimal: 0x52B2
• Base-36: GC2

Squares and roots of 21170

• 21170 squared (21170²) is 448168900
• 21170 cubed (21170³) is 9487735613000
• The square root of 21170 is 145.4991408909
• The cube root of 21170 is 27.6634889335

Scales and comparisons

• 21,170 seconds is equal to 5 hours, 52 minutes, 50 seconds.
• To count from 1 to 21,170 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 21170 cubic inches would be around 2.3 feet tall.

Recreational maths with 21170

• 21170 backwards is 07112
• The number of decimal digits it has is: 5
• The sum of 21170's digits is 11
• More coming soon!