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13205160287 = 111200469117
BaseRepresentation
bin11000100110001011…
…01100000101011111
31021002021211122110122
430103011230011133
5204021010112122
610022200225155
7645144003404
oct142305540537
937067748418
1013205160287
115666a72410
12268646b1bb
131325a44a17
148d3ad22ab
1552447a142
hex31316c15f

13205160287 has 4 divisors (see below), whose sum is σ = 14405629416. Its totient is φ = 12004691160.

The previous prime is 13205160271. The next prime is 13205160289. The reversal of 13205160287 is 78206150231.

It is a happy number.

13205160287 is digitally balanced in base 2, 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 not a de Polignac number, because 13205160287 - 24 = 13205160271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13205160289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600234548 + ... + 600234569.

It is an arithmetic number, because the mean of its divisors is an integer number (3601407354).

Almost surely, 213205160287 is an apocalyptic number.

13205160287 is a deficient number, since it is larger than the sum of its proper divisors (1200469129).

13205160287 is a wasteful number, since it uses less digits than its factorization.

13205160287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200469128.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 13205160287 in words is "thirteen billion, two hundred five million, one hundred sixty thousand, two hundred eighty-seven".

Divisors: 1 11 1200469117 13205160287