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13213061 is a prime number
BaseRepresentation
bin110010011001…
…110110000101
3220212021220122
4302121312011
511340304221
61151111325
7220211021
oct62316605
926767818
1013213061
117505194
124512545
1329781a4
141a7d381
15125eeab
hexc99d85

13213061 has 2 divisors, whose sum is σ = 13213062. Its totient is φ = 13213060.

The previous prime is 13213051. The next prime is 13213069. The reversal of 13213061 is 16031231.

13213061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13184161 + 28900 = 3631^2 + 170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13213061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13213069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606530 + 6606531.

It is an arithmetic number, because the mean of its divisors is an integer number (6606531).

Almost surely, 213213061 is an apocalyptic number.

It is an amenable number.

13213061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213061 is an equidigital number, since it uses as much as digits as its factorization.

13213061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13213061 is about 3634.9774414706. The cubic root of 13213061 is about 236.4110725620.

Adding to 13213061 its reverse (16031231), we get a palindrome (29244292).

The spelling of 13213061 in words is "thirteen million, two hundred thirteen thousand, sixty-one".