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28064834 = 272004631
BaseRepresentation
bin110101100001…
…1110001000010
31221210211201022
41223003301002
524141033314
62441305442
7460355450
oct153036102
957724638
1028064834
1114929586
129495282
135a78215
143a279d0
1526e578e
hex1ac3c42

28064834 has 8 divisors (see below), whose sum is σ = 48111168. Its totient is φ = 12027780.

The previous prime is 28064821. The next prime is 28064863. The reversal of 28064834 is 43846082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28064794 and 28064803.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1002302 + ... + 1002329.

It is an arithmetic number, because the mean of its divisors is an integer number (6013896).

Almost surely, 228064834 is an apocalyptic number.

28064834 is a deficient number, since it is larger than the sum of its proper divisors (20046334).

28064834 is a wasteful number, since it uses less digits than its factorization.

28064834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004640.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 28064834 is about 5297.6253170642. The cubic root of 28064834 is about 303.8930905810.

The spelling of 28064834 in words is "twenty-eight million, sixty-four thousand, eight hundred thirty-four".

Divisors: 1 2 7 14 2004631 4009262 14032417 28064834