About the Number 71 (seventy-one)

George Carlin died on 22 June 2008 at the prime numbered age of 71.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   71 proper divisors are: 1,
   71 is deficient (sum of divisors is 1)
   71 is unhappy
   71 is not a Harshad number
   71 is prime
   ...Cousin prime with 67
   ...Twin prime with 73
   ...OEIS:002145 (4n+3; n=17)
   ...Right-truncatable
   ...prime triplet {67, 71, 73}
   71 is undulating
   71 is prime
   71 in octal is 0107
   71 in hexadecimal is 0x47
   71 in binary is 1000111 (is evil)
   71 nearest square numbers: -7...10 (64 [8]...81 [9])
   sqrt(71) = 8.42615
   ln(71) = 4.26268
   log(71) = 1.85126

   Manual stuff:
   =============
   71 is a natural, whole, integer number that is odd
   71 in Roman numeral is LXXI

   Carlin was 20 years (plus 16 days) older than MathBabbler.
   MathBabbler was reverse_digits(71) * 3 years young when Carlin died.

   [wikipedia]  71^2 = 7! + 1

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 23 June 2008

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