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230560405 = 5199231719
BaseRepresentation
bin11011011111000…
…01001010010101
3121001211200102021
431233201022111
5433010413110
634513413141
75466505525
oct1557411225
9531750367
10230560405
11109166499
126526a1b1
13389c739a
1422899685
15153942da
hexdbe1295

230560405 has 8 divisors (see below), whose sum is σ = 278064000. Its totient is φ = 183520656.

The previous prime is 230560381. The next prime is 230560417. The reversal of 230560405 is 504065032.

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 230560405 - 27 = 230560277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230560405.

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, 114865 + ... + 116854.

It is an arithmetic number, because the mean of its divisors is an integer number (34758000).

Almost surely, 2230560405 is an apocalyptic number.

It is an amenable number.

230560405 is a deficient number, since it is larger than the sum of its proper divisors (47503595).

230560405 is a wasteful number, since it uses less digits than its factorization.

230560405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231923.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 230560405 is about 15184.2156531050. The cubic root of 230560405 is about 613.1897812734.

The spelling of 230560405 in words is "two hundred thirty million, five hundred sixty thousand, four hundred five".

Divisors: 1 5 199 995 231719 1158595 46112081 230560405