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285818230 = 2528581823
BaseRepresentation
bin10001000010010…
…011110101110110
3201220211001220101
4101002103311312
51041132140410
644210024314
710040262205
oct2102236566
9656731811
10285818230
11137378515
127b87809a
13472a3a19
1429d6123c
151a15bd3a
hex11093d76

285818230 has 8 divisors (see below), whose sum is σ = 514472832. Its totient is φ = 114327288.

The previous prime is 285818213. The next prime is 285818231. The reversal of 285818230 is 32818582.

285818230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 285818230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285818231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14290902 + ... + 14290921.

It is an arithmetic number, because the mean of its divisors is an integer number (64309104).

Almost surely, 2285818230 is an apocalyptic number.

285818230 is a deficient number, since it is larger than the sum of its proper divisors (228654602).

285818230 is a wasteful number, since it uses less digits than its factorization.

285818230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28581830.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 285818230 is about 16906.1595284086. The cubic root of 285818230 is about 658.7136177423.

The spelling of 285818230 in words is "two hundred eighty-five million, eight hundred eighteen thousand, two hundred thirty".

Divisors: 1 2 5 10 28581823 57163646 142909115 285818230