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230605 = 5172713
BaseRepresentation
bin111000010011001101
3102201022221
4320103031
524334410
64535341
71650214
oct702315
9381287
10230605
11148291
12b1551
1380c6b
146007b
15484da
hex384cd

230605 has 8 divisors (see below), whose sum is σ = 293112. Its totient is φ = 173568.

The previous prime is 230597. The next prime is 230611. The reversal of 230605 is 506032.

230605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 119716 + 110889 = 346^2 + 333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230605 - 23 = 230597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (36639).

2230605 is an apocalyptic number.

It is an amenable number.

230605 is a deficient number, since it is larger than the sum of its proper divisors (62507).

230605 is a wasteful number, since it uses less digits than its factorization.

230605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 230605 is about 480.2134941877. The cubic root of 230605 is about 61.3229313120.

Adding to 230605 its reverse (506032), we get a palindrome (736637).

The spelling of 230605 in words is "two hundred thirty thousand, six hundred five".

Divisors: 1 5 17 85 2713 13565 46121 230605