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234688057 = 1940130803
BaseRepresentation
bin11011111110100…
…00111000111001
3121100121101111021
431333100320321
5440040004212
635142102441
75546546512
oct1577207071
9540541437
10234688057
1111052567a
126671aa21
1339811096
1423251a09
151590c307
hexdfd0e39

234688057 has 8 divisors (see below), whose sum is σ = 247664160. Its totient is φ = 221774400.

The previous prime is 234688049. The next prime is 234688079. The reversal of 234688057 is 750886432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234688057 - 23 = 234688049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234688007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7783 + ... + 23020.

It is an arithmetic number, because the mean of its divisors is an integer number (30958020).

Almost surely, 2234688057 is an apocalyptic number.

It is an amenable number.

234688057 is a deficient number, since it is larger than the sum of its proper divisors (12976103).

234688057 is a wasteful number, since it uses less digits than its factorization.

234688057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31223.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 234688057 is about 15319.5318792710. The cubic root of 234688057 is about 616.8274084339.

The spelling of 234688057 in words is "two hundred thirty-four million, six hundred eighty-eight thousand, fifty-seven".

Divisors: 1 19 401 7619 30803 585257 12352003 234688057