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BaseRepresentation
bin110110000111100
31102000020
412300330
51341313
6332140
7143532
oct66074
942006
1027708
11198aa
1214050
13c7c5
14a152
158323
hex6c3c

27708 has 12 divisors (see below), whose sum is σ = 64680. Its totient is φ = 9232.

The previous prime is 27701. The next prime is 27733. The reversal of 27708 is 80772.

27708 = 55 + 65 + 75.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27701) by changing a digit.

27708 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 in 3 ways as a sum of consecutive naturals, for example, 1143 + ... + 1166.

It is an arithmetic number, because the mean of its divisors is an integer number (5390).

227708 is an apocalyptic number.

It is an amenable number.

27708 is an abundant number, since it is smaller than the sum of its proper divisors (36972).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32340).

27708 is a wasteful number, since it uses less digits than its factorization.

27708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 27708 is about 166.4572017066. The cubic root of 27708 is about 30.2599630229.

The spelling of 27708 in words is "twenty-seven thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 2309 4618 6927 9236 13854 27708