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230990438 = 27151109267
BaseRepresentation
bin11011100010010…
…10001001100110
3121002122112022102
431301022021212
5433113143223
634530532102
75503246340
oct1561121146
9532575272
10230990438
1110942a598
1265437032
1338b18043
142296c290
151542b928
hexdc4a266

230990438 has 16 divisors (see below), whose sum is σ = 398609664. Its totient is φ = 98339400.

The previous prime is 230990413. The next prime is 230990443. The reversal of 230990438 is 834099032.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 52520 + ... + 56747.

It is an arithmetic number, because the mean of its divisors is an integer number (24913104).

Almost surely, 2230990438 is an apocalyptic number.

230990438 is a deficient number, since it is larger than the sum of its proper divisors (167619226).

230990438 is a wasteful number, since it uses less digits than its factorization.

230990438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109427.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 230990438 is about 15198.3695836099. The cubic root of 230990438 is about 613.5707776954.

The spelling of 230990438 in words is "two hundred thirty million, nine hundred ninety thousand, four hundred thirty-eight".

Divisors: 1 2 7 14 151 302 1057 2114 109267 218534 764869 1529738 16499317 32998634 115495219 230990438