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230456 = 2328807
BaseRepresentation
bin111000010000111000
3102201010102
4320100320
524333311
64534532
71646612
oct702070
9381112
10230456
11148166
12b1448
1380b85
145ddb2
154843b
hex38438

230456 has 8 divisors (see below), whose sum is σ = 432120. Its totient is φ = 115224.

The previous prime is 230453. The next prime is 230467. The reversal of 230456 is 654032.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14396 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (54015).

2230456 is an apocalyptic number.

It is an amenable number.

230456 is a deficient number, since it is larger than the sum of its proper divisors (201664).

230456 is a wasteful number, since it uses less digits than its factorization.

230456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28813 (or 28809 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230456 is about 480.0583297892. The cubic root of 230456 is about 61.3097210095.

Adding to 230456 its reverse (654032), we get a palindrome (884488).

It can be divided in two parts, 230 and 456, that added together give a palindrome (686).

The spelling of 230456 in words is "two hundred thirty thousand, four hundred fifty-six".

Divisors: 1 2 4 8 28807 57614 115228 230456