20666

Names of 20666

• Cardinal: 20666 can be written as Twenty thousand, six hundred sixty-six.

Scientific notation

• Scientific notation: 2.0666 × 10⁴

Factors of 20666

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10335

Divisors of 20666

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10333 20666
• Sum of all divisors σ(n): 31002
• Sum of proper divisors (its aliquot sum) s(n): 10336
• 20666 is a deficient number, because the sum of its proper divisors (10336) is less than itself. Its deficiency is 10330

Bases of 20666

• Binary: 101000010111010₂
• Hexadecimal: 0x50BA
• Base-36: FY2

Squares and roots of 20666

• 20666 squared (20666²) is 427083556
• 20666 cubed (20666³) is 8826108768296
• The square root of 20666 is 143.7567389725
• The cube root of 20666 is 27.4421926187

Scales and comparisons

• 20,666 seconds is equal to 5 hours, 44 minutes, 26 seconds.
• To count from 1 to 20,666 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 20666 cubic inches would be around 2.3 feet tall.

Recreational maths with 20666

• 20666 backwards is 66602
• The number of decimal digits it has is: 5
• The sum of 20666's digits is 20
• More coming soon!