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230431 is a prime number
BaseRepresentation
bin111000010000011111
3102201002111
4320100133
524333211
64534451
71646545
oct702037
9381074
10230431
11148143
12b1427
1380b66
145dd95
1548421
hex3841f

230431 has 2 divisors, whose sum is σ = 230432. Its totient is φ = 230430.

The previous prime is 230393. The next prime is 230449. The reversal of 230431 is 134032.

230431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230431 - 27 = 230303 is a prime.

It is a super-2 number, since 2×2304312 = 106196891522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115215 + 115216.

It is an arithmetic number, because the mean of its divisors is an integer number (115216).

2230431 is an apocalyptic number.

230431 is a deficient number, since it is larger than the sum of its proper divisors (1).

230431 is an equidigital number, since it uses as much as digits as its factorization.

230431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 230431 is about 480.0322905805. The cubic root of 230431 is about 61.3075039580.

Adding to 230431 its reverse (134032), we get a palindrome (364463).

The spelling of 230431 in words is "two hundred thirty thousand, four hundred thirty-one".