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230828 = 221323193
BaseRepresentation
bin111000010110101100
3102201122012
4320112230
524341303
64540352
71650653
oct702654
9381565
10230828
11148474
12b16b8
13810b0
146019a
15485d8
hex385ac

230828 has 24 divisors (see below), whose sum is σ = 456288. Its totient is φ = 101376.

The previous prime is 230827. The next prime is 230833. The reversal of 230828 is 828032.

230828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (230827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (19012).

2230828 is an apocalyptic number.

It is an amenable number.

230828 is a deficient number, since it is larger than the sum of its proper divisors (225460).

230828 is a wasteful number, since it uses less digits than its factorization.

230828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 230828 is about 480.4456264761. The cubic root of 230828 is about 61.3426918087.

The spelling of 230828 in words is "two hundred thirty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 13 23 26 46 52 92 193 299 386 598 772 1196 2509 4439 5018 8878 10036 17756 57707 115414 230828