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230228 = 2257557
BaseRepresentation
bin111000001101010100
3102200210222
4320031110
524331403
64533512
71646135
oct701524
9380728
10230228
11147a79
12b1298
1380a3b
145dc8c
1548338
hex38354

230228 has 6 divisors (see below), whose sum is σ = 402906. Its totient is φ = 115112.

The previous prime is 230227. The next prime is 230233. The reversal of 230228 is 822032.

It can be written as a sum of positive squares in only one way, i.e., 158404 + 71824 = 398^2 + 268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28775 + ... + 28782.

It is an arithmetic number, because the mean of its divisors is an integer number (67151).

2230228 is an apocalyptic number.

It is an amenable number.

230228 is a deficient number, since it is larger than the sum of its proper divisors (172678).

230228 is a wasteful number, since it uses less digits than its factorization.

230228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57561 (or 57559 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 230228 is about 479.8207998826. The cubic root of 230228 is about 61.2894955597.

The spelling of 230228 in words is "two hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 57557 115114 230228