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230534443 is a prime number
BaseRepresentation
bin11011011110110…
…10110100101011
3121001210100210201
431233122310223
5433004100233
634513053031
75466340036
oct1557326453
9531710721
10230534443
11109148a37
1265257177
13389b8619
142289001d
151538b77d
hexdbdad2b

230534443 has 2 divisors, whose sum is σ = 230534444. Its totient is φ = 230534442.

The previous prime is 230534413. The next prime is 230534449. The reversal of 230534443 is 344435032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230534443 - 25 = 230534411 is a prime.

It is a super-2 number, since 2×2305344432 = 106292258818640498, which contains 22 as substring.

It is equal to p12670309 and since 230534443 and 12670309 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (230534449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115267221 + 115267222.

It is an arithmetic number, because the mean of its divisors is an integer number (115267222).

Almost surely, 2230534443 is an apocalyptic number.

230534443 is a deficient number, since it is larger than the sum of its proper divisors (1).

230534443 is an equidigital number, since it uses as much as digits as its factorization.

230534443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 230534443 is about 15183.3607281129. The cubic root of 230534443 is about 613.1667645566.

Adding to 230534443 its reverse (344435032), we get a palindrome (574969475).

The spelling of 230534443 in words is "two hundred thirty million, five hundred thirty-four thousand, four hundred forty-three".