The number

`is used a lot when doing BARS (Basic Arithmetic Road Signs). The fraction`

22`/7 is ofen used to approximate Pi.`

22MathBabbler Number Analyst (MBNA) output: ========================================= 22 is a natural, whole, integer 22 is even 22 proper divisors are: 1,2,11, 22 is deficient (sum of divisors is 14) 22 is unhappy 22 is not a Harshad number 22 is not prime 22 has the prime factors: 2*11 22 is semiprime (biprime or 2-almost prime) 22 sum prime factors: 2...11...answer: 13 22 is undulating 22 is palindromic 22 in octal is 026 22 in hexadecimal is 0x16 22 in binary is 10110 (is odious) 22 nearest square numbers: -6...3 (16...25 [5]) sqrt(22) = 4.69042 ln(22) = 3.09104 log(22) = 1.34242 22 reciprocal is .04545454545454545454545454545454 22! is 1.124e+21 22 is 7.00282 Pi years 22 is 1 score and 2 years 22 written as a Roman numeral is XXII

`is a Smith number because the sum of its digits is equal to the sum of the digits of its prime factors.`

22

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 13 April 2009 (posted 17 April 2009)

This work is licensed under a Creative Commons Attribution 3.0 United States License.