About the Number 139 (one hundred thirty-nine)

This nBAB about the number 139 was BAB# 139 for the fall 2009 semester.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   139 is a natural, whole, integer
   139 is odd
   139 proper divisors are: 1,
   139 is deficient (sum of divisors is 1)
   139 is happy
   139 is not a Harshad number
   139 is prime
   ...Twin prime with 137
   ...OEIS:002145 (4n+3; n=34)
   ...Right-truncatable
   139 is the sum of 5 consecutive primes
       139 = 19 + 23 + 29 + 31 + 37
   139 in octal is 0213
   139 in hexadecimal is 0x8b
   139 in binary is 10001011 (is evil)
   139 nearest square numbers: -18...5 (121...144 [12])
   sqrt(139) = 11.7898
   ln(139) = 4.93447
   log(139) = 2.14301
   139 reciprocal is .00719424460431654676258992805755
   139! is 9.61572e+238
   139 is 44.2451 Pi years
   139 is 6 score and 19 years
   139 written as a Roman numeral is CXXXIX

139 is a triple-X Roman numeral.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 29 November 2009