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285315348 = 223109218131
BaseRepresentation
bin10001000000011…
…001000100010100
3201212212112002010
4101000121010110
51041020042343
644151144220
710033066113
oct2100310424
9655775063
10285315348
1113706470a
127b675070
1347158b66
1429c6dc7a
151a0acd33
hex11019114

285315348 has 24 divisors (see below), whose sum is σ = 671846560. Its totient is φ = 94232160.

The previous prime is 285315347. The next prime is 285315353. The reversal of 285315348 is 843513582.

It is a super-2 number, since 2×2853153482 = 162809695608722208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285315341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107758 + ... + 110373.

Almost surely, 2285315348 is an apocalyptic number.

It is an amenable number.

285315348 is an abundant number, since it is smaller than the sum of its proper divisors (386531212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285315348 is a wasteful number, since it uses less digits than its factorization.

285315348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218247 (or 218245 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 285315348 is about 16891.2802356719. The cubic root of 285315348 is about 658.3270670699.

The spelling of 285315348 in words is "two hundred eighty-five million, three hundred fifteen thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 218131 436262 654393 872524 1308786 2617572 23776279 47552558 71328837 95105116 142657674 285315348