MathBabbler learned on 9 September 2012 that the first Sunday after Labor Day is Grandparents Day. On Grandparents Day 2012, MathBabbler was a grandparent with two grandkids. MathBabbler's last alive grandparent died in

1979.A couple more tidbits about

1979... MathBabbler graduated high school and started college in1979.MathBabbler Number Analyst (MBNA) output: ========================================= 1979 is a natural, whole, integer 1979 is odd 1979 proper divisors are: 1, 1979 is deficient (sum of divisors is 1) 1979 is unhappy 1979 is a Squarefree Number 1979 is not a Harshad number 1979 is prime ...Sexy prime with 1973 ...Truman Gerald prime with 1949 ...OEIS:002145 (4n+3; n=494) ...reversible prime with 9791 ...Right-truncatable ...Eisenstein 1979 is the sum of 5 consecutive primes 1979 = 383 + 389 + 397 + 401 + 409 1979 in octal is 03673 1979 in hexadecimal is 0x7bb 1979 in binary is 11110111011 (is odious) 1979 nearest square numbers: -43...46 (1936...2025 [45]) sqrt(1979) = 44.486 ln(1979) = 7.59035 log(1979) = 3.29645 1979 reciprocal is .00050530570995452248610409297625 1979 is an apocalyptic power 1979! is inf 1979 is 629.935 Pi years 1979 is 98 score and 19 years 1979 written as a Roman numeral is MCMLXXIX 1979 = 990^2 - 989^2 and 990 + 989 = 1979

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

**Created:** 09 September 2012

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