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28052908 = 2213539479
BaseRepresentation
bin110101100000…
…0110110101100
31221210020100121
41223000312230
524140143113
62441134324
7460305622
oct153006654
957706317
1028052908
1114920624
12948a3a4
135a72970
143a23512
1526e1e8d
hex1ac0dac

28052908 has 12 divisors (see below), whose sum is σ = 52869040. Its totient is φ = 12947472.

The previous prime is 28052867. The next prime is 28052909. The reversal of 28052908 is 80925082.

It is not an unprimeable number, because it can be changed into a prime (28052909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269688 + ... + 269791.

Almost surely, 228052908 is an apocalyptic number.

It is an amenable number.

28052908 is a deficient number, since it is larger than the sum of its proper divisors (24816132).

28052908 is a wasteful number, since it uses less digits than its factorization.

28052908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539496 (or 539494 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 28052908 is about 5296.4995987916. The cubic root of 28052908 is about 303.8500385717.

The spelling of 28052908 in words is "twenty-eight million, fifty-two thousand, nine hundred eight".

Divisors: 1 2 4 13 26 52 539479 1078958 2157916 7013227 14026454 28052908