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13388189 is a prime number
BaseRepresentation
bin110011000100…
…100110011101
3221012012010212
4303010212131
511411410224
61154542205
7221540423
oct63044635
927165125
1013388189
117614821
124597965
132a09b09
141ac7113
151296d0e
hexcc499d

13388189 has 2 divisors, whose sum is σ = 13388190. Its totient is φ = 13388188.

The previous prime is 13388119. The next prime is 13388201. The reversal of 13388189 is 98188331.

It is a happy number.

13388189 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., 13380964 + 7225 = 3658^2 + 85^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13388189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13388119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694094 + 6694095.

It is an arithmetic number, because the mean of its divisors is an integer number (6694095).

Almost surely, 213388189 is an apocalyptic number.

It is an amenable number.

13388189 is a deficient number, since it is larger than the sum of its proper divisors (1).

13388189 is an equidigital number, since it uses as much as digits as its factorization.

13388189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The square root of 13388189 is about 3658.9874282375. The cubic root of 13388189 is about 237.4509682715.

The spelling of 13388189 in words is "thirteen million, three hundred eighty-eight thousand, one hundred eighty-nine".