222

Names of 222

• Cardinal: 222 can be written as Two hundred twenty-two.

Scientific notation

• Scientific notation: 2.22 × 10²

Factors of 222

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 42

Divisors of 222

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 37 74 111 222
• Sum of all divisors σ(n): 456
• Sum of proper divisors (its aliquot sum) s(n): 234
• 222 is an abundant number, because the sum of its proper divisors (234) is greater than itself. Its abundance is 12

Bases of 222

• Binary: 11011110₂
• Hexadecimal: 0xDE
• Base-36: 66

Squares and roots of 222

• 222 squared (222²) is 49284
• 222 cubed (222³) is 10941048
• The square root of 222 is 14.8996644257
• The cube root of 222 is 6.0550489465

Scales and comparisons

• 222 seconds is equal to 3 minutes, 42 seconds.
• To count from 1 to 222 would take you about fifty-one 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 222 cubic inches would be around 0.5 feet tall.

Recreational maths with 222

• 222 is the same when its digits are reversed! That makes it a palindromic number.
• 222 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 222's digits is 6
• More coming soon!