20450

Names of 20450

• Cardinal: 20450 can be written as Twenty thousand, four hundred fifty.

Scientific notation

• Scientific notation: 2.045 × 10⁴

Factors of 20450

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 416

Divisors of 20450

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 5 10 25 50 409 818 2045 4090 10225 20450
• Sum of all divisors σ(n): 38130
• Sum of proper divisors (its aliquot sum) s(n): 17680
• 20450 is a deficient number, because the sum of its proper divisors (17680) is less than itself. Its deficiency is 2770

Bases of 20450

• Binary: 100111111100010₂
• Hexadecimal: 0x4FE2
• Base-36: FS2

Squares and roots of 20450

• 20450 squared (20450²) is 418202500
• 20450 cubed (20450³) is 8552241125000
• The square root of 20450 is 143.0034964609
• The cube root of 20450 is 27.3462494317

Scales and comparisons

• 20,450 seconds is equal to 5 hours, 40 minutes, 50 seconds.
• To count from 1 to 20,450 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 20450 cubic inches would be around 2.3 feet tall.

Recreational maths with 20450

• 20450 backwards is 05402
• The number of decimal digits it has is: 5
• The sum of 20450's digits is 11
• More coming soon!