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5047209 = 324491249
BaseRepresentation
bin10011010000001110101001
3100111102110200
4103100032221
52243002314
6300102413
760620616
oct23201651
910442420
105047209
112938052
121834a09
13107941b
1495550d
1569a709
hex4d03a9

5047209 has 12 divisors (see below), whose sum is σ = 7312500. Its totient is φ = 3354624.

The previous prime is 5047193. The next prime is 5047213. The reversal of 5047209 is 9027405.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 2471184 = 1605^2 + 1572^2 .

It is not a de Polignac number, because 5047209 - 24 = 5047193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5047709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3417 + ... + 4665.

It is an arithmetic number, because the mean of its divisors is an integer number (609375).

Almost surely, 25047209 is an apocalyptic number.

It is an amenable number.

5047209 is a deficient number, since it is larger than the sum of its proper divisors (2265291).

5047209 is a wasteful number, since it uses less digits than its factorization.

5047209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 5047209 is about 2246.5994302501. The cubic root of 5047209 is about 171.5340847462.

The spelling of 5047209 in words is "five million, forty-seven thousand, two hundred nine".

Divisors: 1 3 9 449 1249 1347 3747 4041 11241 560801 1682403 5047209