20291

Names of 20291

• Cardinal: 20291 can be written as Twenty thousand, two hundred ninety-one.

Scientific notation

• Scientific notation: 2.0291 × 10⁴

Factors of 20291

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 300

Divisors of 20291

• Number of divisors d(n): 4
• Complete list of divisors:
  1 103 197 20291
• Sum of all divisors σ(n): 20592
• Sum of proper divisors (its aliquot sum) s(n): 301
• 20291 is a deficient number, because the sum of its proper divisors (301) is less than itself. Its deficiency is 19990

Bases of 20291

• Binary: 100111101000011₂
• Hexadecimal: 0x4F43
• Base-36: FNN

Squares and roots of 20291

• 20291 squared (20291²) is 411724681
• 20291 cubed (20291³) is 8354305502171
• The square root of 20291 is 142.4464811781
• The cube root of 20291 is 27.2751920331

Scales and comparisons

• 20,291 seconds is equal to 5 hours, 38 minutes, 11 seconds.
• To count from 1 to 20,291 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 20291 cubic inches would be around 2.3 feet tall.

Recreational maths with 20291

• 20291 backwards is 19202
• The number of decimal digits it has is: 5
• The sum of 20291's digits is 14
• More coming soon!