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56065105 = 519289349
BaseRepresentation
bin1101010111011…
…1110001010001
310220111101212101
43111313301101
5103323040410
65321400401
71250355055
oct325676121
9126441771
1056065105
11297135a8
1216939101
13b7ccc25
147635c65
154dc6d3a
hex3577c51

56065105 has 24 divisors (see below), whose sum is σ = 72009000. Its totient is φ = 41893632.

The previous prime is 56065057. The next prime is 56065109. The reversal of 56065105 is 50156065.

It can be written as a sum of positive squares in 4 ways, for example, as 4210704 + 51854401 = 2052^2 + 7201^2 .

It is not a de Polignac number, because 56065105 - 27 = 56064977 is a prime.

It is a super-2 number, since 2×560651052 = 6286591997322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56065109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160471 + ... + 160819.

It is an arithmetic number, because the mean of its divisors is an integer number (3000375).

Almost surely, 256065105 is an apocalyptic number.

It is an amenable number.

56065105 is a deficient number, since it is larger than the sum of its proper divisors (15943895).

56065105 is a wasteful number, since it uses less digits than its factorization.

56065105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56065105 is about 7487.6635207520. The cubic root of 56065105 is about 382.7344426882.

The spelling of 56065105 in words is "fifty-six million, sixty-five thousand, one hundred five".

Divisors: 1 5 19 89 95 349 361 445 1691 1745 1805 6631 8455 31061 32129 33155 125989 155305 160645 590159 629945 2950795 11213021 56065105