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56052161 = 1121493109
BaseRepresentation
bin1101010111010…
…0100111000001
310220110202002222
43111310213001
5103322132121
65321220425
71250302244
oct325644701
9126422088
1056052161
1129704900
1216931715
13b7c7079
14763125b
154dc30ab
hex35749c1

56052161 has 12 divisors (see below), whose sum is σ = 62044500. Its totient is φ = 50598240.

The previous prime is 56052137. The next prime is 56052163. The reversal of 56052161 is 16125065.

56052161 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 8179600 + 47872561 = 2860^2 + 6919^2 .

It is not a de Polignac number, because 56052161 - 26 = 56052097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56052161.

It is not an unprimeable number, because it can be changed into a prime (56052163) 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 in 11 ways as a sum of consecutive naturals, for example, 16475 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (5170375).

Almost surely, 256052161 is an apocalyptic number.

It is an amenable number.

56052161 is a deficient number, since it is larger than the sum of its proper divisors (5992339).

56052161 is a wasteful number, since it uses less digits than its factorization.

56052161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 56052161 is about 7486.7991157770. The cubic root of 56052161 is about 382.7049858871.

The spelling of 56052161 in words is "fifty-six million, fifty-two thousand, one hundred sixty-one".

Divisors: 1 11 121 149 1639 3109 18029 34199 376189 463241 5095651 56052161