42090

Names of 42090

• Cardinal: 42090 can be written as Forty-two thousand and ninety.

Scientific notation

• Scientific notation: 4.209 × 10⁴

Factors of 42090

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 94

Divisors of 42090

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 23 30 46 61 69 115 122 138 183 230 305 345 366 610 690 915 1403 1830 2806 4209 7015 8418 14030 21045 42090
• Sum of all divisors σ(n): 107136
• Sum of proper divisors (its aliquot sum) s(n): 65046
• 42090 is an abundant number, because the sum of its proper divisors (65046) is greater than itself. Its abundance is 22956

Bases of 42090

• Binary: 1010010001101010₂
• Hexadecimal: 0xA46A
• Base-36: WH6

Squares and roots of 42090

• 42090 squared (42090²) is 1771568100
• 42090 cubed (42090³) is 74565301329000
• The square root of 42090 is 205.1584753307
• The cube root of 42090 is 34.7850774969

Scales and comparisons

• 42,090 seconds is equal to 11 hours, 41 minutes, 30 seconds.
• To count from 1 to 42,090 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 42090 cubic inches would be around 2.9 feet tall.

Recreational maths with 42090

• 42090 backwards is 09024
• 42090 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 42090's digits is 15
• More coming soon!