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28084302 = 2321560239
BaseRepresentation
bin110101100100…
…0100001001110
31221211211102100
41223020201032
524142144202
62441535530
7460466301
oct153104116
957754370
1028084302
1114942174
1294a45a6
135a8403c
143a30b38
1526eb41c
hex1ac884e

28084302 has 12 divisors (see below), whose sum is σ = 60849360. Its totient is φ = 9361428.

The previous prime is 28084283. The next prime is 28084307. The reversal of 28084302 is 20348082.

28084302 is a `hidden beast` number, since 280 + 84 + 302 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 780102 + ... + 780137.

It is an arithmetic number, because the mean of its divisors is an integer number (5070780).

Almost surely, 228084302 is an apocalyptic number.

28084302 is an abundant number, since it is smaller than the sum of its proper divisors (32765058).

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

28084302 is a wasteful number, since it uses less digits than its factorization.

28084302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560247 (or 1560244 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28084302 is about 5299.4624255673. The cubic root of 28084302 is about 303.9633424751.

The spelling of 28084302 in words is "twenty-eight million, eighty-four thousand, three hundred two".

Divisors: 1 2 3 6 9 18 1560239 3120478 4680717 9361434 14042151 28084302