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28743362 = 21722232
BaseRepresentation
bin110110110100…
…1011011000010
32000002022110222
41231221123002
524324241422
62504023042
7466212614
oct155513302
960068428
1028743362
111525234a
129761a82
135c5500b
143b62db4
1527cb842
hex1b696c2

28743362 has 18 divisors (see below), whose sum is σ = 46006713. Its totient is φ = 13465632.

The previous prime is 28743359. The next prime is 28743373. The reversal of 28743362 is 26334782.

It can be written as a sum of positive squares in 2 ways, for example, as 26306641 + 2436721 = 5129^2 + 1561^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3791.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 128783 + ... + 129005.

Almost surely, 228743362 is an apocalyptic number.

28743362 is a deficient number, since it is larger than the sum of its proper divisors (17263351).

28743362 is an equidigital number, since it uses as much as digits as its factorization.

28743362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 242 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 28743362 is about 5361.2836149564. The cubic root of 28743362 is about 306.3227048263.

The spelling of 28743362 in words is "twenty-eight million, seven hundred forty-three thousand, three hundred sixty-two".

Divisors: 1 2 17 34 223 289 446 578 3791 7582 49729 64447 99458 128894 845393 1690786 14371681 28743362