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13093789 is a prime number
BaseRepresentation
bin110001111100…
…101110011101
3220122020022011
4301330232131
511323000124
61144351221
7216203212
oct61745635
926566264
1013093789
117433615
124475511
132935b07
141a4bb09
151239994
hexc7cb9d

13093789 has 2 divisors, whose sum is σ = 13093790. Its totient is φ = 13093788.

The previous prime is 13093781. The next prime is 13093799. The reversal of 13093789 is 98739031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9548100 + 3545689 = 3090^2 + 1883^2 .

It is an emirp because it is prime and its reverse (98739031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13093789 - 23 = 13093781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13093781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6546894 + 6546895.

It is an arithmetic number, because the mean of its divisors is an integer number (6546895).

Almost surely, 213093789 is an apocalyptic number.

It is an amenable number.

13093789 is a deficient number, since it is larger than the sum of its proper divisors (1).

13093789 is an equidigital number, since it uses as much as digits as its factorization.

13093789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 13093789 is about 3618.5340954591. The cubic root of 13093789 is about 235.6975741705.

The spelling of 13093789 in words is "thirteen million, ninety-three thousand, seven hundred eighty-nine".