On 21 January 2014, the number

158was the smallest number that didn't have a nBAB. Now 159 is the smallest number not having a nBAB.MathBabbler Number Analyst (MBNA) output: ========================================= 158 is a natural, whole, integer 158 is even 158 proper divisors are: 1,2,79, 158 has 3 proper divisors 158 is deficient (sum of divisors is 82; ratio: 0.518987) 158 is unhappy 158 is a Squarefree Number 158 is composite (not prime) 158 has the prime factors: 2*79 (sum=81) 158 is semiprime (biprime or 2-almost prime) 158 is the sum of 10 consecutive primes 158 = 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 158 in octal is 0236 158 in hexadecimal is 0x9e 158 in binary is 10011110 (is odious) 158 nearest square numbers: -14...11 (144...169 [13]) sqrt(158) = 12.5698 ln(158) = 5.0626 log(158) = 2.19866 158 reciprocal is .00632911392405063291139240506329 158 is 50.293 Pi years 158 is 7 score and 18 years 158 written as a Roman numeral is CLVIII

`= 3.14557, which when rounded down the nearest hundredth (3.14) is Pi (3.14159265358979) rounded to the nearest hundredth.`

log_{5}(158)

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 21 January 2014

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