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28452 = 2232371
BaseRepresentation
bin110111100100100
31110000210
412330210
51402302
6335420
7145644
oct67444
943023
1028452
111a416
1214570
13cc48
14a524
15866c
hex6f24

28452 has 12 divisors (see below), whose sum is σ = 66416. Its totient is φ = 9480.

The previous prime is 28447. The next prime is 28463. The reversal of 28452 is 25482.

28452 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

28452 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, 1174 + ... + 1197.

228452 is an apocalyptic number.

It is an amenable number.

28452 is an abundant number, since it is smaller than the sum of its proper divisors (37964).

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 (33208).

28452 is a wasteful number, since it uses less digits than its factorization.

28452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2376 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 28452 is about 168.6772065218. The cubic root of 28452 is about 30.5284156930.

Adding to 28452 its product of digits (640), we get a palindrome (29092).

The spelling of 28452 in words is "twenty-eight thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 2371 4742 7113 9484 14226 28452