MathBabbler's two grandkids were born day

`of year 2009 (i.e. 31 July 2009 [which is a Pi Approximation BAD because (31-9)/7 approximates Pi]).`

212MathBabbler Number Analyst (MBNA) output: ========================================= 212 is a natural, whole, integer 212 is even 212 proper divisors are: 1,2,4,53,106, 212 is deficient (sum of divisors is 166) 212 is unhappy 212 is not a Harshad number 212 is not prime 212 has the prime factors: 2*2*53 (sum=57) 212 sum of prime factors is: 57 212 is undulating 212 is palindromic 212 in octal is 0324 212 in hexadecimal is 0xd4 212 in binary is 11010100 (is evil) 212 nearest square numbers: -16...13 (196...225 [15]) sqrt(212) = 14.5602 ln(212) = 5.35659 log(212) = 2.32634 212 reciprocal is .00471698113207547169811320754716 212! is 4.7337e+402 212 is 67.4817 Pi years 212 is 10 score and 12 years 212 written as a Roman numeral is CCXII

`°F is the boiling point of water at sea level.`

212

`[Wikipedia.org]`

`is a Zuckerman number. A Zuckerman number is "an integer that is divisible by the product of its digits in a given number base."`

212212in base-10 has the digits 2, 1, 2 the product of the digits is 2 * 1 * 2 = 4 4 is a proper divisor (factor) of212Observe...

sqrt(212) / ln(212) = 2.71819 e = 2.71828183 square-root of 212 divided-by its natural log approximates 'e' rounded to the nearest thousandth

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

**Created:** 31 July 2009

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