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28804616 = 2312728351
BaseRepresentation
bin110110111100…
…0011000001000
32000012102111122
41231320120020
524333221431
62505214412
7466556321
oct155703010
960172448
1028804616
1115294375
129791408
135c76b69
143b7b448
1527dea7b
hex1b78608

28804616 has 16 divisors (see below), whose sum is σ = 54435840. Its totient is φ = 14288400.

The previous prime is 28804603. The next prime is 28804621. The reversal of 28804616 is 61640882.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 13160 + ... + 15191.

It is an arithmetic number, because the mean of its divisors is an integer number (3402240).

Almost surely, 228804616 is an apocalyptic number.

It is an amenable number.

28804616 is a deficient number, since it is larger than the sum of its proper divisors (25631224).

28804616 is a wasteful number, since it uses less digits than its factorization.

28804616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28484 (or 28480 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28804616 is about 5366.9931991759. The cubic root of 28804616 is about 306.5401483990.

The spelling of 28804616 in words is "twenty-eight million, eight hundred four thousand, six hundred sixteen".

Divisors: 1 2 4 8 127 254 508 1016 28351 56702 113404 226808 3600577 7201154 14402308 28804616