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28048052 = 227012013
BaseRepresentation
bin110101011111…
…1101010110100
31221202222200202
41222333222310
524140014202
62441100032
7460255514
oct152775264
957688622
1028048052
1114917a0a
129487618
135a706a6
143a21844
1526e0802
hex1abfab4

28048052 has 6 divisors (see below), whose sum is σ = 49084098. Its totient is φ = 14024024.

The previous prime is 28048051. The next prime is 28048057. The reversal of 28048052 is 25084082.

It can be written as a sum of positive squares in only one way, i.e., 21473956 + 6574096 = 4634^2 + 2564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28048051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506003 + ... + 3506010.

It is an arithmetic number, because the mean of its divisors is an integer number (8180683).

Almost surely, 228048052 is an apocalyptic number.

It is an amenable number.

28048052 is a deficient number, since it is larger than the sum of its proper divisors (21036046).

28048052 is a wasteful number, since it uses less digits than its factorization.

28048052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012017 (or 7012015 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28048052 is about 5296.0411629820. The cubic root of 28048052 is about 303.8325052625.

The spelling of 28048052 in words is "twenty-eight million, forty-eight thousand, fifty-two".

Divisors: 1 2 4 7012013 14024026 28048052