About the Number 89 (eighty-nine)

Paul Harvey died at the age of 90. MathBabbler already had a nBAB for the number 90, but he didn't have a nBab for the numbers 89 and 91. This nBAB is for the number 89.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   89 is a natural, whole, integer
   89 is odd
   89 proper divisors are: 1,
   89 is deficient (sum of divisors is 1)
   89 is unhappy
   89 is not a Harshad number
   89 is prime
   ...Sexy prime with 83
   ...Sophie Germain prime with 179
   ...Pythagorean
   89 is undulating
   89 is a Fibonacci number
   89 in octal is 0131
   89 in hexadecimal is 0x59
   89 in binary is 1011001 (is evil)
   89 nearest square numbers: -8...11 (81...100 [10])
   sqrt(89) = 9.43398
   ln(89) = 4.48864
   log(89) = 1.94939
   89 reciprocal is .01123595505617977528089887640449
   89! is 1.6508e+136
   89 is 28.3296 Pi years
   89 is 4 score and 9 years
   89 written as a Roman numeral is LXXXIX

Road sign... US Hwy-89A.

Update::2014.01.17

Russell Johnson, who played The Professor on Gilligan's Island, died on 16 January 2014 at the age of 89.

Updated MBNA output.

   89 is a natural, whole, integer
   89 is odd
   89 proper divisors are: 1,
   89 has 1 proper divisors
   89 is deficient (sum of divisors is 1; ratio: 0.011236)
   89 is unhappy
   89 is a Squarefree Number
   89 is prime
   ...Sexy prime with 83
   ...Sophie Germain prime with 179
   ...Truman Gerald prime with 59
   ...Pythagorean
   ...Eisenstein
   89 is undulating
   89 is a Fibonacci number
   89 in octal is 0131
   89 in hexadecimal is 0x59
   89 in binary is 1011001 (is evil)
   89 nearest square numbers: -8...11 (81...100 [10])
   sqrt(89) = 9.43398
   ln(89) = 4.48864
   log(89) = 1.94939
   89 reciprocal is .01123595505617977528089887640449
   89 is 28.3296 Pi years
   89 is 4 score and 9 years
   89 written as a Roman numeral is LXXXIX
   89 is 45^2 - 44^2 and 45 + 44 = 89

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 March 2009

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