304 is the
natural number
In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following
303 and preceding
305.
In mathematics
*304 is an even
composite number
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime numb ...
with two prime factors.
*304 is the
sum of consecutive
primes in two different ways: It is the sum of 41+43+47+53+59+61 and of 23+29+31+37+41+43+47+53.
*304 is a primitive
semiperfect number meaning that it is a semiperfect number that is not divisible by any other semiperfect number.
*304 is an
untouchable number
In mathematics, an untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer. That is, these numbers are not in the image of the aliquot sum function. Their study goes back at l ...
meaning that it is not equal to the sum of any number’s proper
divisors.
*304 is a
nontotient
In number theory, a nontotient is a positive integer ''n'' which is not a totient number: it is not in the range of Euler's totient function φ, that is, the equation φ(''x'') = ''n'' has no solution ''x''. In other words, ''n'' is a nontotie ...
number meaning that it is an even number where phi(x) cannot result in that number.
References
{{Improve categories, date=October 2023
Integers