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285563030 = 2528556303
BaseRepresentation
bin10001000001010…
…101100010010110
3201220100002211112
4101001111202112
51041101004110
644200335022
710035150164
oct2101254226
9656302745
10285563030
11137213805
127b774472
134721480c
1429cd6234
151a10b405
hex11055896

285563030 has 8 divisors (see below), whose sum is σ = 514013472. Its totient is φ = 114225208.

The previous prime is 285563017. The next prime is 285563051. The reversal of 285563030 is 30365582.

285563030 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14278142 + ... + 14278161.

It is an arithmetic number, because the mean of its divisors is an integer number (64251684).

Almost surely, 2285563030 is an apocalyptic number.

285563030 is a deficient number, since it is larger than the sum of its proper divisors (228450442).

285563030 is a wasteful number, since it uses less digits than its factorization.

285563030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556310.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 285563030 is about 16898.6102978914. The cubic root of 285563030 is about 658.5175096868.

The spelling of 285563030 in words is "two hundred eighty-five million, five hundred sixty-three thousand, thirty".

Divisors: 1 2 5 10 28556303 57112606 142781515 285563030