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234431 is a prime number
BaseRepresentation
bin111001001110111111
3102220120122
4321032333
530000211
65005155
71664321
oct711677
9386518
10234431
1115014a
12b37bb
1382922
1461611
15496db
hex393bf

234431 has 2 divisors, whose sum is σ = 234432. Its totient is φ = 234430.

The previous prime is 234383. The next prime is 234457. The reversal of 234431 is 134432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234431 - 210 = 233407 is a prime.

It is a super-2 number, since 2×2344312 = 109915787522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117215 + 117216.

It is an arithmetic number, because the mean of its divisors is an integer number (117216).

2234431 is an apocalyptic number.

234431 is a deficient number, since it is larger than the sum of its proper divisors (1).

234431 is an equidigital number, since it uses as much as digits as its factorization.

234431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 234431 is about 484.1807513729. The cubic root of 234431 is about 61.6602119695.

Adding to 234431 its reverse (134432), we get a palindrome (368863).

Subtracting from 234431 its reverse (134432), we obtain a palindrome (99999).

The spelling of 234431 in words is "two hundred thirty-four thousand, four hundred thirty-one".