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230447 = 724703
BaseRepresentation
bin111000010000101111
3102201010002
4320100233
524333242
64534515
71646600
oct702057
9381102
10230447
11148158
12b143b
1380b79
145dda7
1548432
hex3842f

230447 has 6 divisors (see below), whose sum is σ = 268128. Its totient is φ = 197484.

The previous prime is 230431. The next prime is 230449. The reversal of 230447 is 744032.

It is a happy number.

230447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 230447 - 24 = 230431 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2303 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (44688).

2230447 is an apocalyptic number.

230447 is a deficient number, since it is larger than the sum of its proper divisors (37681).

230447 is an equidigital number, since it uses as much as digits as its factorization.

230447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717 (or 4710 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 230447 is about 480.0489558368. The cubic root of 230447 is about 61.3089228895.

Adding to 230447 its reverse (744032), we get a palindrome (974479).

The spelling of 230447 in words is "two hundred thirty thousand, four hundred forty-seven".

Divisors: 1 7 49 4703 32921 230447