### About the Number 197 (one hundred ninety-seven)

While creating a nBAB for the number 191, the MBNA indicated that 191 was a Sexy prime with the number `197`.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
197 is a natural, whole, integer
197 is odd
197 proper divisors are: 1,
197 is deficient (sum of divisors is 1)
197 is unhappy
197 is not a Harshad number
197 is prime
...Cousin prime with 193
...Sexy prime with 191
...Twin prime with 199
...Pythagorean
...Left-truncatable
...Right-truncatable
...Eisenstein
...prime triplet {191, 193, 197}
...prime triplet {193, 197, 199}
...prime quadruplet {191, 193, 197, 199}
197 in octal is 0305
197 in binary is 11000101 (is evil)
197 nearest square numbers: -1...28 (196...225 [15])
sqrt(197) = 14.0357
ln(197) = 5.2832
log(197) = 2.29447
197 reciprocal is .00507614213197969543147208121827
197! is 1.00078e+368
197 is 62.707 Pi years
197 is 9 score and 17 years
197 written as a Roman numeral is CXCVII
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 11 July 2009 (posted 13 July 2009)