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13116827 = 14878821
BaseRepresentation
bin110010000010…
…010110011011
3220200101220102
4302002112123
511324214302
61145050015
7216330323
oct62022633
926611812
1013116827
117449959
12448690b
132943449
141a56283
151241702
hexc8259b

13116827 has 4 divisors (see below), whose sum is σ = 13127136. Its totient is φ = 13106520.

The previous prime is 13116823. The next prime is 13116839. The reversal of 13116827 is 72861131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72861131 = 710408733.

It is a cyclic number.

It is not a de Polignac number, because 13116827 - 22 = 13116823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13116827.

It is not an unprimeable number, because it can be changed into a prime (13116823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2924 + ... + 5897.

It is an arithmetic number, because the mean of its divisors is an integer number (3281784).

Almost surely, 213116827 is an apocalyptic number.

13116827 is a deficient number, since it is larger than the sum of its proper divisors (10309).

13116827 is an equidigital number, since it uses as much as digits as its factorization.

13116827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308.

The product of its digits is 2016, while the sum is 29.

The square root of 13116827 is about 3621.7160297296. The cubic root of 13116827 is about 235.8357266742.

Adding to 13116827 its reverse (72861131), we get a palindrome (85977958).

The spelling of 13116827 in words is "thirteen million, one hundred sixteen thousand, eight hundred twenty-seven".

Divisors: 1 1487 8821 13116827