20984

Names of 20984

• Cardinal: 20984 can be written as Twenty thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.0984 × 10⁴

Factors of 20984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 106

Divisors of 20984

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 8 43 61 86 122 172 244 344 488 2623 5246 10492 20984
• Sum of all divisors σ(n): 40920
• Sum of proper divisors (its aliquot sum) s(n): 19936
• 20984 is a deficient number, because the sum of its proper divisors (19936) is less than itself. Its deficiency is 1048

Bases of 20984

• Binary: 101000111111000₂
• Hexadecimal: 0x51F8
• Base-36: G6W

Squares and roots of 20984

• 20984 squared (20984²) is 440328256
• 20984 cubed (20984³) is 9239848123904
• The square root of 20984 is 144.8585516979
• The cube root of 20984 is 27.5822331919

Scales and comparisons

• 20,984 seconds is equal to 5 hours, 49 minutes, 44 seconds.
• To count from 1 to 20,984 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 20984 cubic inches would be around 2.3 feet tall.

Recreational maths with 20984

• 20984 backwards is 48902
• The number of decimal digits it has is: 5
• The sum of 20984's digits is 23
• More coming soon!