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5205105211 = 7173311341
BaseRepresentation
bin1001101100011111…
…11001101000111011
3111102202022202000111
410312033321220323
541130001331321
62220255245151
7242662443565
oct46617715073
914382282014
105205105211
112231167649
1210132197b7
1364c4b2817
14375412335
15206e6d5e1
hex1363f9a3b

5205105211 has 4 divisors (see below), whose sum is σ = 5278416624. Its totient is φ = 5131793800.

The previous prime is 5205105197. The next prime is 5205105259. The reversal of 5205105211 is 1125015025.

It is a happy number.

5205105211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5205105211 - 225 = 5171550779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205106211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36655600 + ... + 36655741.

It is an arithmetic number, because the mean of its divisors is an integer number (1319604156).

Almost surely, 25205105211 is an apocalyptic number.

5205105211 is a deficient number, since it is larger than the sum of its proper divisors (73311413).

5205105211 is an equidigital number, since it uses as much as digits as its factorization.

5205105211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73311412.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 5205105211 is about 72146.4150945839. The cubic root of 5205105211 is about 1733.0449910610.

The spelling of 5205105211 in words is "five billion, two hundred five million, one hundred five thousand, two hundred eleven".

Divisors: 1 71 73311341 5205105211