420018

Names of 420018

• Cardinal: 420018 can be written as Four hundred twenty thousand and eighteen.

Scientific notation

• Scientific notation: 4.20018 × 10⁵

Factors of 420018

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 70008

Divisors of 420018

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 70003 140006 210009 420018
• Sum of all divisors σ(n): 840048
• Sum of proper divisors (its aliquot sum) s(n): 420030
• 420018 is an abundant number, because the sum of its proper divisors (420030) is greater than itself. Its abundance is 12

Bases of 420018

• Binary: 1100110100010110010₂
• Hexadecimal: 0x668B2
• Base-36: 9036

Squares and roots of 420018

• 420018 squared (420018²) is 176415120324
• 420018 cubed (420018³) is 74097526008245832
• The square root of 420018 is 648.0879569935
• The cube root of 420018 is 74.8897936959

Scales and comparisons

• 420,018 seconds is equal to 4 days, 20 hours, 40 minutes, 18 seconds.
• To count from 1 to 420,018 would take you about four days.

  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 420018 cubic inches would be around 6.2 feet tall.

Recreational maths with 420018

• 420018 backwards is 810024
• The number of decimal digits it has is: 6
• The sum of 420018's digits is 15
• More coming soon!