42438

Names of 42438

• Cardinal: 42438 can be written as Forty-two thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 4.2438 × 10⁴

Factors of 42438

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 659

Divisors of 42438

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 11 22 33 66 643 1286 1929 3858 7073 14146 21219 42438
• Sum of all divisors σ(n): 92736
• Sum of proper divisors (its aliquot sum) s(n): 50298
• 42438 is an abundant number, because the sum of its proper divisors (50298) is greater than itself. Its abundance is 7860

Bases of 42438

• Binary: 1010010111000110₂
• Hexadecimal: 0xA5C6
• Base-36: WQU

Squares and roots of 42438

• 42438 squared (42438²) is 1800983844
• 42438 cubed (42438³) is 76430152371672
• The square root of 42438 is 206.0048543117
• The cube root of 42438 is 34.8806821335

Scales and comparisons

• 42,438 seconds is equal to 11 hours, 47 minutes, 18 seconds.
• To count from 1 to 42,438 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 42438 cubic inches would be around 2.9 feet tall.

Recreational maths with 42438

• 42438 backwards is 83424
• The number of decimal digits it has is: 5
• The sum of 42438's digits is 21
• More coming soon!