About the Number 398 (three hundred ninety-eight)

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

MathBabbler Number Analyst (MBNA) output:
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398 is natural, counting, whole, integer
398 is even (not odd)
398 proper divisors are: 1,2,199,
398 has 3 proper divisors
398 is deficient (sum of divisors is 202; ratio: 0.507538)
398 is unhappy
398 is a Squarefree Number
398 is composite (not prime)
398 has the prime factors: 2*199 (sum=201)
398 is semiprime (biprime or 2-almost prime)
398 is a 199-smooth number
398 in octal is 0616
398 in hexadecimal is 0x18e
398 in binary is 110001110 (is odious)
398 nearest square numbers: -37...2 (361...400 [20])
sqrt(398) = 19.9499
ln(398) = 5.98645
log(398) = 2.59988
398! is 4.01219e+863
398 is 126.687 Pi years
398 is 19 score and 18 years
398 written as a Roman numeral is CCCXCVIII
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398 reciprocal is 0.0025125628140703517587939698492462311557788944723618090452261306532663316582914572864321608040201005

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.