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56271245 = 511254249
BaseRepresentation
bin1101011010101…
…0000110001101
310220212212122012
43112222012031
5103401134440
65330031005
71252204052
oct326520615
9126785565
1056271245
1129844468
1216a18465
13b8729c4
14768b029
154e17e65
hex35aa18d

56271245 has 4 divisors (see below), whose sum is σ = 67525500. Its totient is φ = 45016992.

The previous prime is 56271227. The next prime is 56271251. The reversal of 56271245 is 54217265.

56271245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54217265 = 510843453.

It can be written as a sum of positive squares in 2 ways, for example, as 13053769 + 43217476 = 3613^2 + 6574^2 .

It is a cyclic number.

It is not a de Polignac number, because 56271245 - 220 = 55222669 is a prime.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 5627120 + ... + 5627129.

It is an arithmetic number, because the mean of its divisors is an integer number (16881375).

Almost surely, 256271245 is an apocalyptic number.

It is an amenable number.

56271245 is a deficient number, since it is larger than the sum of its proper divisors (11254255).

56271245 is a wasteful number, since it uses less digits than its factorization.

56271245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254254.

The product of its digits is 16800, while the sum is 32.

The square root of 56271245 is about 7501.4161996252. The cubic root of 56271245 is about 383.2029478848.

The spelling of 56271245 in words is "fifty-six million, two hundred seventy-one thousand, two hundred forty-five".

Divisors: 1 5 11254249 56271245