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28052 = 227013
BaseRepresentation
bin110110110010100
31102110222
412312110
51344202
6333512
7144533
oct66624
942428
1028052
111a092
1214298
13c9cb
14a31a
1584a2
hex6d94

28052 has 6 divisors (see below), whose sum is σ = 49098. Its totient is φ = 14024.

The previous prime is 28051. The next prime is 28057. The reversal of 28052 is 25082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26896 + 1156 = 164^2 + 34^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503 + ... + 3510.

It is an arithmetic number, because the mean of its divisors is an integer number (8183).

228052 is an apocalyptic number.

It is an amenable number.

28052 is a deficient number, since it is larger than the sum of its proper divisors (21046).

28052 is a wasteful number, since it uses less digits than its factorization.

28052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 28052 is about 167.4873129524. The cubic root of 28052 is about 30.3846760257.

The spelling of 28052 in words is "twenty-eight thousand, fifty-two".

Divisors: 1 2 4 7013 14026 28052