2018

Names of 2018

• Cardinal: 2018 can be written as Two thousand and eighteen.

Scientific notation

• Scientific notation: 2.018 × 10³

Factors of 2018

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1011

Divisors of 2018

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 1009 2018
• Sum of all divisors σ(n): 3030
• Sum of proper divisors (its aliquot sum) s(n): 1012
• 2018 is a deficient number, because the sum of its proper divisors (1012) is less than itself. Its deficiency is 1006

Bases of 2018

• Binary: 11111100010₂
• Hexadecimal: 0x7E2
• Base-36: 1K2

Squares and roots of 2018

• 2018 squared (2018²) is 4072324
• 2018 cubed (2018³) is 8217949832
• The square root of 2018 is 44.9221548905
• The cube root of 2018 is 12.6368953011

Scales and comparisons

• 2,018 seconds is equal to 33 minutes, 38 seconds.
• To count from 1 to 2,018 would take you about thirty-three minutes.

  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 2018 cubic inches would be around 1.1 feet tall.

Recreational maths with 2018

• 2018 backwards is 8102
• The number of decimal digits it has is: 4
• The sum of 2018's digits is 11
• More coming soon!