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230915 = 546183
BaseRepresentation
bin111000011000000011
3102201202102
4320120003
524342130
64541015
71651136
oct703003
9381672
10230915
11148543
12b176b
1381149
146021d
1548645
hex38603

230915 has 4 divisors (see below), whose sum is σ = 277104. Its totient is φ = 184728.

The previous prime is 230891. The next prime is 230929. The reversal of 230915 is 519032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230915 - 212 = 226819 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 23087 + ... + 23096.

It is an arithmetic number, because the mean of its divisors is an integer number (69276).

2230915 is an apocalyptic number.

230915 is a deficient number, since it is larger than the sum of its proper divisors (46189).

230915 is an equidigital number, since it uses as much as digits as its factorization.

230915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46188.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 230915 is about 480.5361588892. The cubic root of 230915 is about 61.3503976096.

Adding to 230915 its reverse (519032), we get a palindrome (749947).

The spelling of 230915 in words is "two hundred thirty thousand, nine hundred fifteen".

Divisors: 1 5 46183 230915