Search a number
-
+
28082528 = 253128309
BaseRepresentation
bin110101100100…
…0000101100000
31221211201222122
41223020011200
524142120103
62441523412
7460461155
oct153100540
957751878
1028082528
1114940901
1294a3568
135a832a6
143a3022c
1526eab38
hex1ac8160

28082528 has 24 divisors (see below), whose sum is σ = 57072960. Its totient is φ = 13587840.

The previous prime is 28082503. The next prime is 28082543. The reversal of 28082528 is 82528082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13163 + ... + 15146.

It is an arithmetic number, because the mean of its divisors is an integer number (2378040).

Almost surely, 228082528 is an apocalyptic number.

It is an amenable number.

28082528 is an abundant number, since it is smaller than the sum of its proper divisors (28990432).

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

28082528 is a wasteful number, since it uses less digits than its factorization.

28082528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28350 (or 28342 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 28082528 is about 5299.2950474568. The cubic root of 28082528 is about 303.9569421935.

The spelling of 28082528 in words is "twenty-eight million, eighty-two thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 28309 56618 113236 226472 452944 877579 905888 1755158 3510316 7020632 14041264 28082528