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28074084 = 2232339507
BaseRepresentation
bin110101100011…
…0000001100100
31221211022101220
41223012001210
524141332314
62441420340
7460424433
oct153060144
957738356
1028074084
1114935525
12949a6b0
135a7c4ac
143a2b11a
1526e83a9
hex1ac6064

28074084 has 12 divisors (see below), whose sum is σ = 65506224. Its totient is φ = 9358024.

The previous prime is 28074073. The next prime is 28074097. The reversal of 28074084 is 48047082.

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

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, 1169742 + ... + 1169765.

It is an arithmetic number, because the mean of its divisors is an integer number (5458852).

Almost surely, 228074084 is an apocalyptic number.

It is an amenable number.

28074084 is an abundant number, since it is smaller than the sum of its proper divisors (37432140).

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

28074084 is a wasteful number, since it uses less digits than its factorization.

28074084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339514 (or 2339512 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 28074084 is about 5298.4982778142. The cubic root of 28074084 is about 303.9264740235.

The spelling of 28074084 in words is "twenty-eight million, seventy-four thousand, eighty-four".

Divisors: 1 2 3 4 6 12 2339507 4679014 7018521 9358028 14037042 28074084