20388

Names of 20388

• Cardinal: 20388 can be written as Twenty thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 2.0388 × 10⁴

Factors of 20388

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1704

Divisors of 20388

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 3 4 6 12 1699 3398 5097 6796 10194 20388
• Sum of all divisors σ(n): 47600
• Sum of proper divisors (its aliquot sum) s(n): 27212
• 20388 is an abundant number, because the sum of its proper divisors (27212) is greater than itself. Its abundance is 6824

Bases of 20388

• Binary: 100111110100100₂
• Hexadecimal: 0x4FA4
• Base-36: FQC

Squares and roots of 20388

• 20388 squared (20388²) is 415670544
• 20388 cubed (20388³) is 8474691051072
• The square root of 20388 is 142.7865539889
• The cube root of 20388 is 27.3185854741

Scales and comparisons

• 20,388 seconds is equal to 5 hours, 39 minutes, 48 seconds.
• To count from 1 to 20,388 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 20388 cubic inches would be around 2.3 feet tall.

Recreational maths with 20388

• 20388 backwards is 88302
• The number of decimal digits it has is: 5
• The sum of 20388's digits is 21
• More coming soon!