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230232557 = 1912117503
BaseRepresentation
bin11011011100100…
…01000111101101
3121001020000200202
431232101013231
5432414420212
634502403245
75463641642
oct1556210755
9531200622
10230232557
11108a62145
1265130525
13389110a9
1422811dc9
151532c0c2
hexdb911ed

230232557 has 4 divisors (see below), whose sum is σ = 242350080. Its totient is φ = 218115036.

The previous prime is 230232551. The next prime is 230232577. The reversal of 230232557 is 755232032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230232557 - 226 = 163123693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230232551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6058733 + ... + 6058770.

It is an arithmetic number, because the mean of its divisors is an integer number (60587520).

Almost surely, 2230232557 is an apocalyptic number.

It is an amenable number.

230232557 is a deficient number, since it is larger than the sum of its proper divisors (12117523).

230232557 is a wasteful number, since it uses less digits than its factorization.

230232557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12117522.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 230232557 is about 15173.4161282158. The cubic root of 230232557 is about 612.8989993331.

Adding to 230232557 its reverse (755232032), we get a palindrome (985464589).

The spelling of 230232557 in words is "two hundred thirty million, two hundred thirty-two thousand, five hundred fifty-seven".

Divisors: 1 19 12117503 230232557