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2749028 = 221813797
BaseRepresentation
bin1010011111001001100100
312011122221212
422133021210
51200432103
6134530552
732236442
oct12371144
95148855
102749028
111608427
12b06a58
13753359
14517b92
153947d8
hex29f264

2749028 has 12 divisors (see below), whose sum is σ = 4838652. Its totient is φ = 1366560.

The previous prime is 2749027. The next prime is 2749031. The reversal of 2749028 is 8209472.

2749028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 2715904 = 182^2 + 1648^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2748985 and 2749003.

It is not an unprimeable number, because it can be changed into a prime (2749027) 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 3 ways as a sum of consecutive naturals, for example, 1175 + ... + 2622.

It is an arithmetic number, because the mean of its divisors is an integer number (403221).

22749028 is an apocalyptic number.

It is an amenable number.

2749028 is a deficient number, since it is larger than the sum of its proper divisors (2089624).

2749028 is a wasteful number, since it uses less digits than its factorization.

2749028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982 (or 3980 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2749028 is about 1658.0193002495. The cubic root of 2749028 is about 140.0854580286.

The spelling of 2749028 in words is "two million, seven hundred forty-nine thousand, twenty-eight".

Divisors: 1 2 4 181 362 724 3797 7594 15188 687257 1374514 2749028