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28088 = 233511
BaseRepresentation
bin110110110111000
31102112022
412312320
51344323
6334012
7144614
oct66670
942468
1028088
111a115
1214308
13ca28
14a344
1584c8
hex6db8

28088 has 8 divisors (see below), whose sum is σ = 52680. Its totient is φ = 14040.

The previous prime is 28087. The next prime is 28097. The reversal of 28088 is 88082.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28088.

It is not an unprimeable number, because it can be changed into a prime (28081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (6585).

228088 is an apocalyptic number.

It is an amenable number.

28088 is a deficient number, since it is larger than the sum of its proper divisors (24592).

28088 is a wasteful number, since it uses less digits than its factorization.

28088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 28088 is about 167.5947493211. The cubic root of 28088 is about 30.3976683346.

The spelling of 28088 in words is "twenty-eight thousand, eighty-eight".

Divisors: 1 2 4 8 3511 7022 14044 28088