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285827112 = 23323969821
BaseRepresentation
bin10001000010010…
…110000000101000
3201220211112002100
4101002112000220
51041132431422
644210133400
710040330124
oct2102260050
9656745070
10285827112
1113738415a
127b881260
13472a7a8c
1429d64584
151a15e7ac
hex11096028

285827112 has 24 divisors (see below), whose sum is σ = 774115290. Its totient is φ = 95275680.

The previous prime is 285827111. The next prime is 285827117. The reversal of 285827112 is 211728582.

285827112 is a `hidden beast` number, since 2 + 8 + 582 + 71 + 1 + 2 = 666.

285827112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 214153956 + 71673156 = 14634^2 + 8466^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (285827111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1984839 + ... + 1984982.

Almost surely, 2285827112 is an apocalyptic number.

It is an amenable number.

285827112 is an abundant number, since it is smaller than the sum of its proper divisors (488288178).

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

285827112 is a wasteful number, since it uses less digits than its factorization.

285827112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969833 (or 3969826 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 285827112 is about 16906.4222116922. The cubic root of 285827112 is about 658.7204409993.

The spelling of 285827112 in words is "two hundred eighty-five million, eight hundred twenty-seven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 3969821 7939642 11909463 15879284 23818926 31758568 35728389 47637852 71456778 95275704 142913556 285827112