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230687 = 1971171
BaseRepresentation
bin111000010100011111
3102201102222
4320110133
524340222
64535555
71650362
oct702437
9381388
10230687
11148356
12b15bb
1381002
14600d9
1548542
hex3851f

230687 has 4 divisors (see below), whose sum is σ = 232056. Its totient is φ = 229320.

The previous prime is 230683. The next prime is 230693. The reversal of 230687 is 786032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230687 - 22 = 230683 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 230687.

It is not an unprimeable number, because it can be changed into a prime (230683) 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, 389 + ... + 782.

It is an arithmetic number, because the mean of its divisors is an integer number (58014).

2230687 is an apocalyptic number.

230687 is a deficient number, since it is larger than the sum of its proper divisors (1369).

230687 is a wasteful number, since it uses less digits than its factorization.

230687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 230687 is about 480.2988652912. The cubic root of 230687 is about 61.3301989839.

The spelling of 230687 in words is "two hundred thirty thousand, six hundred eighty-seven".

Divisors: 1 197 1171 230687