42389

Names of 42389

• Cardinal: 42389 can be written as Forty-two thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 4.2389 × 10⁴

Factors of 42389

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 139

Divisors of 42389

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 23 97 437 1843 2231 42389
• Sum of all divisors σ(n): 47040
• Sum of proper divisors (its aliquot sum) s(n): 4651
• 42389 is a deficient number, because the sum of its proper divisors (4651) is less than itself. Its deficiency is 37738

Bases of 42389

• Binary: 1010010110010101₂
• Hexadecimal: 0xA595
• Base-36: WPH

Squares and roots of 42389

• 42389 squared (42389²) is 1796827321
• 42389 cubed (42389³) is 76165713309869
• The square root of 42389 is 205.8858907261
• The cube root of 42389 is 34.8672522539

Scales and comparisons

• 42,389 seconds is equal to 11 hours, 46 minutes, 29 seconds.
• To count from 1 to 42,389 would take you about eleven 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 42389 cubic inches would be around 2.9 feet tall.

Recreational maths with 42389

• 42389 backwards is 98324
• The number of decimal digits it has is: 5
• The sum of 42389's digits is 26
• More coming soon!