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13171349 is a prime number
BaseRepresentation
bin110010001111…
…101010010101
3220210011200202
4302033222111
511332440344
61150150245
7216645302
oct62175225
926704622
1013171349
117486914
1244b2385
1329621c9
141a6c0a9
15125294e
hexc8fa95

13171349 has 2 divisors, whose sum is σ = 13171350. Its totient is φ = 13171348.

The previous prime is 13171343. The next prime is 13171363. The reversal of 13171349 is 94317131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8940100 + 4231249 = 2990^2 + 2057^2 .

It is an emirp because it is prime and its reverse (94317131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13171349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13171343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585674 + 6585675.

It is an arithmetic number, because the mean of its divisors is an integer number (6585675).

Almost surely, 213171349 is an apocalyptic number.

It is an amenable number.

13171349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13171349 is an equidigital number, since it uses as much as digits as its factorization.

13171349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 13171349 is about 3629.2353189067. The cubic root of 13171349 is about 236.1620368102.

The spelling of 13171349 in words is "thirteen million, one hundred seventy-one thousand, three hundred forty-nine".