About the Number 138 (one hundred thirty-eight)

This nBAB for the number 138 was created because on 17 February 2010 138 was the smallest number without a nBAB. In addition, there was already a nBAB for 139; therefore, this nBAB about 138 completes the set of nBABs in the 130-139 interval.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   138 is a natural, whole, integer
   138 is even
   138 proper divisors are: 1,2,3,6,23,46,69,
   138 is abundant (sum of divisors is 150)
   138 is unhappy
   138 is not a Harshad number
   138 is not prime
   138 has the prime factors: 2*3*23 (sum=28)
   138 is sphenic (had 3 unique prime factors)
   138 sum of prime factors is: 28
   138 is the sum of 4 consecutive primes
       138 = 29 + 31 + 37 + 41
   138 in octal is 0212
   138 in hexadecimal is 0x8a
   138 in binary is 10001010 (is odious)
   138 nearest square numbers: -17...6 (121...144 [12])
   sqrt(138) = 11.7473
   ln(138) = 4.92725
   log(138) = 2.13988
   138 reciprocal is .00724637681159420289855072463768
   138! is 6.91779e+236
   138 is 43.9268 Pi years
   138 is 6 score and 18 years
   138 written as a Roman numeral is CXXXVIII

138 is a triple-X Roman numeral.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 17 February 2010

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