20980

Names of 20980

• Cardinal: 20980 can be written as Twenty thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 2.098 × 10⁴

Factors of 20980

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1056

Divisors of 20980

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 5 10 20 1049 2098 4196 5245 10490 20980
• Sum of all divisors σ(n): 44100
• Sum of proper divisors (its aliquot sum) s(n): 23120
• 20980 is an abundant number, because the sum of its proper divisors (23120) is greater than itself. Its abundance is 2140

Bases of 20980

• Binary: 101000111110100₂
• Hexadecimal: 0x51F4
• Base-36: G6S

Squares and roots of 20980

• 20980 squared (20980²) is 440160400
• 20980 cubed (20980³) is 9234565192000
• The square root of 20980 is 144.8447444679
• The cube root of 20980 is 27.5804804925

Scales and comparisons

• 20,980 seconds is equal to 5 hours, 49 minutes, 40 seconds.
• To count from 1 to 20,980 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 20980 cubic inches would be around 2.3 feet tall.

Recreational maths with 20980

• 20980 backwards is 08902
• The number of decimal digits it has is: 5
• The sum of 20980's digits is 19
• More coming soon!