About the Number 54 (fifty-four)

Baseball player Mark "the Bird" Fidrych died at the age of 54 on 13 April 2009.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   54 is a natural, whole, integer
   54 is even
   54 proper divisors are: 1,2,3,6,9,18,27,
   54 is abundant (sum of divisors is 66)
   54 is unhappy
   54 is a Harshad number
   54 is not prime
   54 has the prime factors: 2*3*3*3
   54 sum of prime factors is: 11
   54 is undulating
   54 in octal is 066
   54 in hexadecimal is 0x36
   54 in binary is 110110 (is evil)
   54 nearest square numbers: -5...10 (49...64 [8])
   sqrt(54) = 7.34847
   ln(54) = 3.98898
   log(54) = 1.73239
   54 reciprocal is .01851851851851851851851851851851
   54! is 2.30844e+71
   54 is 17.1887 Pi years
   54 is 2 score and 14 years
   54 written as a Roman numeral is LIV

[Wikipedia] 54 is a Leyland number because it is of the form x^y + y^x (3^2 + 2^3).

OEIS.org::id:A076980

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 14 April 2009