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13205416211 = 131015801247
BaseRepresentation
bin11000100110001101…
…01010100100010011
31021002022022122112022
430103012222210103
5204021041304321
610022205522055
7645146120501
oct142306524423
937068278468
1013205416211
115667127719
12268657332b
131325b04360
148d3b5b671
155244cadab
hex3131aa913

13205416211 has 4 divisors (see below), whose sum is σ = 14221217472. Its totient is φ = 12189614952.

The previous prime is 13205416181. The next prime is 13205416219. The reversal of 13205416211 is 11261450231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11261450231 = 37929713589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13205416211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13205416219) 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, 507900611 + ... + 507900636.

It is an arithmetic number, because the mean of its divisors is an integer number (3555304368).

Almost surely, 213205416211 is an apocalyptic number.

13205416211 is a deficient number, since it is larger than the sum of its proper divisors (1015801261).

13205416211 is a wasteful number, since it uses less digits than its factorization.

13205416211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015801260.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 13205416211 its reverse (11261450231), we get a palindrome (24466866442).

The spelling of 13205416211 in words is "thirteen billion, two hundred five million, four hundred sixteen thousand, two hundred eleven".

Divisors: 1 13 1015801247 13205416211