About the Number 397 (three hundred ninety-seven)

397 was the smallest number that didn't have a nBAB on 1 February 2017.

MathBabbler Number Analyst (MBNA) output:
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397 is natural, counting, whole, integer
397 is odd (not even)
397 is extremely odd
397 proper divisors are: 1,
397 has 1 proper divisors
397 is deficient (sum of divisors is 1; ratio: 0.00251889)
397 is happy
397 is a Squarefree Number
397 is prime (not composite)
...Cousin prime with 401
...Truman Gerald (p-30) prime with 367
...Pythagorean prime
...Left-truncatable prime
...Strong prime
397 is a ThurmNumber
397 in octal is 0615
397 in hexadecimal is 0x18d
397 in binary is 110001101 (is odious)
397 nearest square numbers: -36...3 (361...400 [20])
sqrt(397) = 19.9249
ln(397) = 5.98394
log(397) = 2.59879
397! is 1.00809e+861
397 is 126.369 Pi years
397 is 19 score and 17 years
397 written as a Roman numeral is CCCXCVII
397 is 199^2 - 198^2 and 199 + 198 = 397
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397 reciprocal is 0.002518891687657430730478589420654911838790931989924433249370277078085642317380352644836272040302267

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 February 2017

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