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7965428 = 221991357
BaseRepresentation
bin11110011000101011110100
3112222200111212
4132120223310
54014343203
6442420552
7124463552
oct36305364
915880455
107965428
1145505a9
122801758
13185b793
1410b4bd2
15a751d8
hex798af4

7965428 has 6 divisors (see below), whose sum is σ = 13939506. Its totient is φ = 3982712.

The previous prime is 7965421. The next prime is 7965457. The reversal of 7965428 is 8245697.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 1350244 = 2572^2 + 1162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7965421) by changing a digit.

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 as a sum of consecutive naturals, namely, 995675 + ... + 995682.

It is an arithmetic number, because the mean of its divisors is an integer number (2323251).

Almost surely, 27965428 is an apocalyptic number.

It is an amenable number.

7965428 is a deficient number, since it is larger than the sum of its proper divisors (5974078).

7965428 is a wasteful number, since it uses less digits than its factorization.

7965428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991361 (or 1991359 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 7965428 is about 2822.3089837932. The cubic root of 7965428 is about 199.7114839927.

The spelling of 7965428 in words is "seven million, nine hundred sixty-five thousand, four hundred twenty-eight".

Divisors: 1 2 4 1991357 3982714 7965428