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5018209 = 72371439
BaseRepresentation
bin10011001001001001100001
3100102221200121
4103021021201
52241040314
6255320241
760440230
oct23111141
910387617
105018209
112918289
121820081
131069171
14948b17
15691d24
hex4c9261

5018209 has 16 divisors (see below), whose sum is σ = 6082560. Its totient is φ = 4047120.

The previous prime is 5018207. The next prime is 5018219. The reversal of 5018209 is 9028105.

5018209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5018209 - 21 = 5018207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5018201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11212 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

Almost surely, 25018209 is an apocalyptic number.

It is an amenable number.

5018209 is a deficient number, since it is larger than the sum of its proper divisors (1064351).

5018209 is a wasteful number, since it uses less digits than its factorization.

5018209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 5018209 is about 2240.1359333755. The cubic root of 5018209 is about 171.2049228685.

The spelling of 5018209 in words is "five million, eighteen thousand, two hundred nine".

Divisors: 1 7 23 71 161 439 497 1633 3073 10097 11431 31169 70679 218183 716887 5018209