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230980285 = 583556579
BaseRepresentation
bin11011100010001…
…11101010111101
3121002122000101101
431301013222331
5433112332120
634530413101
75503204624
oct1561075275
9532560341
10230980285
111094229a8
1265431191
1338b13533
14229686bb
151542890a
hexdc47abd

230980285 has 8 divisors (see below), whose sum is σ = 280516320. Its totient is φ = 182557584.

The previous prime is 230980271. The next prime is 230980297. The reversal of 230980285 is 582089032.

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 230980285 - 215 = 230947517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277875 + ... + 278704.

It is an arithmetic number, because the mean of its divisors is an integer number (35064540).

Almost surely, 2230980285 is an apocalyptic number.

It is an amenable number.

230980285 is a deficient number, since it is larger than the sum of its proper divisors (49536035).

230980285 is an equidigital number, since it uses as much as digits as its factorization.

230980285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556667.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 230980285 is about 15198.0355638484. The cubic root of 230980285 is about 613.5617878927.

The spelling of 230980285 in words is "two hundred thirty million, nine hundred eighty thousand, two hundred eighty-five".

Divisors: 1 5 83 415 556579 2782895 46196057 230980285