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228595 = 5131349
BaseRepresentation
bin110111110011110011
3102121120111
4313303303
524303340
64522151
71641313
oct676363
9377514
10228595
11146824
12b0357
1380083
145d443
1547aea
hex37cf3

228595 has 8 divisors (see below), whose sum is σ = 277200. Its totient is φ = 180960.

The previous prime is 228593. The next prime is 228601. The reversal of 228595 is 595822.

It is a happy number.

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

It is not a de Polignac number, because 228595 - 21 = 228593 is a prime.

It is a d-powerful number, because it can be written as 216 + 217 + 56 + 8 + 93 + 56 .

It is not an unprimeable number, because it can be changed into a prime (228593) by changing a digit.

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, 481 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (34650).

2228595 is an apocalyptic number.

228595 is a deficient number, since it is larger than the sum of its proper divisors (48605).

228595 is a wasteful number, since it uses less digits than its factorization.

228595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 7200, while the sum is 31.

The square root of 228595 is about 478.1160946883. The cubic root of 228595 is about 61.1442434355.

The spelling of 228595 in words is "two hundred twenty-eight thousand, five hundred ninety-five".

Divisors: 1 5 131 349 655 1745 45719 228595