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15028 = 2213172
BaseRepresentation
bin11101010110100
3202121121
43222310
5440103
6153324
761546
oct35264
922547
1015028
1110322
128844
136ac0
145696
1546bd
hex3ab4

15028 has 18 divisors (see below), whose sum is σ = 30086. Its totient is φ = 6528.

The previous prime is 15017. The next prime is 15031. The reversal of 15028 is 82051.

Adding to 15028 its reverse (82051), we get a palindrome (97079).

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3364 + 11664 = 58^2 + 108^2 .

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

15028 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 5 ways as a sum of consecutive naturals, for example, 876 + ... + 892.

215028 is an apocalyptic number.

It is an amenable number.

15028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (15043).

15028 is a wasteful number, since it uses less digits than its factorization.

15028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 32 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 15028 is about 122.5887433658. The cubic root of 15028 is about 24.6774565246.

The spelling of 15028 in words is "fifteen thousand, twenty-eight".

Divisors: 1 2 4 13 17 26 34 52 68 221 289 442 578 884 1156 3757 7514 15028