228

Names of 228

• Cardinal: 228 can be written as Two hundred twenty-eight.

Scientific notation

• Scientific notation: 2.28 × 10²

Factors of 228

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 24

Divisors of 228

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 3 4 6 12 19 38 57 76 114 228
• Sum of all divisors σ(n): 560
• Sum of proper divisors (its aliquot sum) s(n): 332
• 228 is an abundant number, because the sum of its proper divisors (332) is greater than itself. Its abundance is 104

Bases of 228

• Binary: 11100100₂
• Hexadecimal: 0xE4
• Base-36: 6C

Squares and roots of 228

• 228 squared (228²) is 51984
• 228 cubed (228³) is 11852352
• The square root of 228 is 15.0996688705
• The cube root of 228 is 6.1091147443

Scales and comparisons

• 228 seconds is equal to 3 minutes, 48 seconds.
• To count from 1 to 228 would take you about fifty-four seconds.

  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 228 cubic inches would be around 0.5 feet tall.

Recreational maths with 228

• 228 backwards is 822
• 228 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 228's digits is 12
• More coming soon!