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5312785 = 51062557
BaseRepresentation
bin10100010001000100010001
3100222220202211
4110101010101
52330002120
6305512121
763105112
oct24210421
910886684
105312785
112aa9635
121942641
13114027a
149c4209
156ee25a
hex511111

5312785 has 4 divisors (see below), whose sum is σ = 6375348. Its totient is φ = 4250224.

The previous prime is 5312777. The next prime is 5312803. The reversal of 5312785 is 5872135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 2765569 = 1596^2 + 1663^2 .

It is a cyclic number.

It is not a de Polignac number, because 5312785 - 23 = 5312777 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531274 + ... + 531283.

It is an arithmetic number, because the mean of its divisors is an integer number (1593837).

Almost surely, 25312785 is an apocalyptic number.

It is an amenable number.

5312785 is a deficient number, since it is larger than the sum of its proper divisors (1062563).

5312785 is a wasteful number, since it uses less digits than its factorization.

5312785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062562.

The product of its digits is 8400, while the sum is 31.

The square root of 5312785 is about 2304.9479386745. The cubic root of 5312785 is about 174.4914213783.

The spelling of 5312785 in words is "five million, three hundred twelve thousand, seven hundred eighty-five".

Divisors: 1 5 1062557 5312785