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13388357 is a prime number
BaseRepresentation
bin110011000100…
…101001000101
3221012012101002
4303010221011
511411411412
61154543045
7221541053
oct63045105
927165332
1013388357
117614964
124597a85
132a09c08
141ac71d3
151296dc2
hexcc4a45

13388357 has 2 divisors, whose sum is σ = 13388358. Its totient is φ = 13388356.

The previous prime is 13388329. The next prime is 13388381. The reversal of 13388357 is 75388331.

It is a happy number.

13388357 is digitally balanced in base 3, 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., 8375236 + 5013121 = 2894^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 13388357 - 28 = 13388101 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13388357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13388327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694178 + 6694179.

It is an arithmetic number, because the mean of its divisors is an integer number (6694179).

Almost surely, 213388357 is an apocalyptic number.

It is an amenable number.

13388357 is a deficient number, since it is larger than the sum of its proper divisors (1).

13388357 is an equidigital number, since it uses as much as digits as its factorization.

13388357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 13388357 is about 3659.0103853365. The cubic root of 13388357 is about 237.4519614752.

The spelling of 13388357 in words is "thirteen million, three hundred eighty-eight thousand, three hundred fifty-seven".