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5218057 = 132913841
BaseRepresentation
bin10011111001111100001001
3100211002211101
4103321330021
52313434212
6303501401
762231665
oct23717411
910732741
105218057
112a44449
1218b7861
131109110
1499b8a5
156d1157
hex4f9f09

5218057 has 8 divisors (see below), whose sum is σ = 5813640. Its totient is φ = 4650240.

The previous prime is 5218051. The next prime is 5218061. The reversal of 5218057 is 7508125.

It can be written as a sum of positive squares in 4 ways, for example, as 69696 + 5148361 = 264^2 + 2269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5218057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5218051) 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 7 ways as a sum of consecutive naturals, for example, 6544 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (726705).

Almost surely, 25218057 is an apocalyptic number.

It is an amenable number.

5218057 is a deficient number, since it is larger than the sum of its proper divisors (595583).

5218057 is a wasteful number, since it uses less digits than its factorization.

5218057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5218057 is about 2284.3066781849. The cubic root of 5218057 is about 173.4481237493.

The spelling of 5218057 in words is "five million, two hundred eighteen thousand, fifty-seven".

Divisors: 1 13 29 377 13841 179933 401389 5218057