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 hexadecimal is 0xc5
   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)

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This work is licensed under a Creative Commons Attribution 3.0 United States License.