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228659 = 1072137
BaseRepresentation
bin110111110100110011
3102121122212
4313310303
524304114
64522335
71641434
oct676463
9377585
10228659
11146882
12b03ab
1380102
145d48b
1547b3e
hex37d33

228659 has 4 divisors (see below), whose sum is σ = 230904. Its totient is φ = 226416.

The previous prime is 228647. The next prime is 228677. The reversal of 228659 is 956822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956822 = 2478411.

It is a cyclic number.

It is not a de Polignac number, because 228659 - 212 = 224563 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228659.

It is not an unprimeable number, because it can be changed into a prime (228619) 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, 962 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (57726).

2228659 is an apocalyptic number.

228659 is a deficient number, since it is larger than the sum of its proper divisors (2245).

228659 is a wasteful number, since it uses less digits than its factorization.

228659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244.

The product of its digits is 8640, while the sum is 32.

The square root of 228659 is about 478.1830193556. The cubic root of 228659 is about 61.1499491106.

The spelling of 228659 in words is "two hundred twenty-eight thousand, six hundred fifty-nine".

Divisors: 1 107 2137 228659