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204331 is a prime number
BaseRepresentation
bin110001111000101011
3101101021211
4301320223
523014311
64213551
71510501
oct617053
9341254
10204331
1112a576
129a2b7
137200a
1454671
1540821
hex31e2b

204331 has 2 divisors, whose sum is σ = 204332. Its totient is φ = 204330.

The previous prime is 204329. The next prime is 204353. The reversal of 204331 is 133402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204331 - 21 = 204329 is a prime.

It is a super-2 number, since 2×2043312 = 83502315122, which contains 22 as substring.

Together with 204329, it forms a pair of twin primes.

It is a Chen prime.

204331 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (204301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102165 + 102166.

It is an arithmetic number, because the mean of its divisors is an integer number (102166).

2204331 is an apocalyptic number.

204331 is a deficient number, since it is larger than the sum of its proper divisors (1).

204331 is an equidigital number, since it uses as much as digits as its factorization.

204331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 204331 is about 452.0298662699. The cubic root of 204331 is about 58.8994745154.

Adding to 204331 its reverse (133402), we get a palindrome (337733).

It can be divided in two parts, 204 and 331, that added together give a palindrome (535).

The spelling of 204331 in words is "two hundred four thousand, three hundred thirty-one".