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284168 = 2335521
BaseRepresentation
bin1000101011000001000
3112102210202
41011120020
533043133
610031332
72262323
oct1053010
9472722
10284168
11184555
12118548
139c461
14757ba
15592e8
hex45608

284168 has 8 divisors (see below), whose sum is σ = 532830. Its totient is φ = 142080.

The previous prime is 284161. The next prime is 284173. The reversal of 284168 is 861482.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 88804 = 442^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 284168.

It is not an unprimeable number, because it can be changed into a prime (284161) by changing a digit.

284168 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17753 + ... + 17768.

2284168 is an apocalyptic number.

It is an amenable number.

284168 is a deficient number, since it is larger than the sum of its proper divisors (248662).

284168 is a wasteful number, since it uses less digits than its factorization.

284168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35527 (or 35523 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 284168 is about 533.0741036666. The cubic root of 284168 is about 65.7443430776.

The spelling of 284168 in words is "two hundred eighty-four thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 35521 71042 142084 284168