20398

Names of 20398

• Cardinal: 20398 can be written as Twenty thousand, three hundred ninety-eight.

Scientific notation

• Scientific notation: 2.0398 × 10⁴

Factors of 20398

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 87

Divisors of 20398

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 7 14 31 47 62 94 217 329 434 658 1457 2914 10199 20398
• Sum of all divisors σ(n): 36864
• Sum of proper divisors (its aliquot sum) s(n): 16466
• 20398 is a deficient number, because the sum of its proper divisors (16466) is less than itself. Its deficiency is 3932

Bases of 20398

• Binary: 100111110101110₂
• Hexadecimal: 0x4FAE
• Base-36: FQM

Squares and roots of 20398

• 20398 squared (20398²) is 416078404
• 20398 cubed (20398³) is 8487167284792
• The square root of 20398 is 142.8215669987
• The cube root of 20398 is 27.3230511925

Scales and comparisons

• 20,398 seconds is equal to 5 hours, 39 minutes, 58 seconds.
• To count from 1 to 20,398 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 20398 cubic inches would be around 2.3 feet tall.

Recreational maths with 20398

• 20398 backwards is 89302
• The number of decimal digits it has is: 5
• The sum of 20398's digits is 22
• More coming soon!