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28764696 = 2335712099
BaseRepresentation
bin110110110111…
…0101000011000
32000010101202010
41231232220120
524330432241
62504305520
7466332042
oct155565030
960111663
1028764696
1115267384
1297722a0
135c6193c
143b6aa92
1527d2d16
hex1b6ea18

28764696 has 32 divisors (see below), whose sum is σ = 72072000. Its totient is φ = 9566880.

The previous prime is 28764677. The next prime is 28764709. The reversal of 28764696 is 69646782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12655 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (2252250).

Almost surely, 228764696 is an apocalyptic number.

It is an amenable number.

28764696 is an abundant number, since it is smaller than the sum of its proper divisors (43307304).

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

28764696 is a wasteful number, since it uses less digits than its factorization.

28764696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2675 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 28764696 is about 5363.2728813664. The cubic root of 28764696 is about 306.3984727249.

The spelling of 28764696 in words is "twenty-eight million, seven hundred sixty-four thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 571 1142 1713 2099 2284 3426 4198 4568 6297 6852 8396 12594 13704 16792 25188 50376 1198529 2397058 3595587 4794116 7191174 9588232 14382348 28764696