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5207209 = 74791553
BaseRepresentation
bin10011110111010010101001
3100210112221121
4103313102221
52313112314
6303335241
762155240
oct23672251
910715847
105207209
112a37287
1218b1521
1311041b7
14997957
156ccd24
hex4f74a9

5207209 has 8 divisors (see below), whose sum is σ = 5967360. Its totient is φ = 4451136.

The previous prime is 5207207. The next prime is 5207221. The reversal of 5207209 is 9027025.

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

It is a cyclic number.

It is not a de Polignac number, because 5207209 - 21 = 5207207 is a prime.

5207209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5207201) 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, 2577 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (745920).

Almost surely, 25207209 is an apocalyptic number.

It is an amenable number.

5207209 is a deficient number, since it is larger than the sum of its proper divisors (760151).

5207209 is a wasteful number, since it uses less digits than its factorization.

5207209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 5207209 is about 2281.9309805513. The cubic root of 5207209 is about 173.3278445829.

The spelling of 5207209 in words is "five million, two hundred seven thousand, two hundred nine".

Divisors: 1 7 479 1553 3353 10871 743887 5207209