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13249349 is a prime number
BaseRepresentation
bin110010100010…
…101101000101
3220221010200122
4302202231011
511342434344
61151551325
7220421561
oct62425505
926833618
1013249349
11752a483
12452b545
13298b869
141a8c6a1
15126aaee
hexca2b45

13249349 has 2 divisors, whose sum is σ = 13249350. Its totient is φ = 13249348.

The previous prime is 13249343. The next prime is 13249361. The reversal of 13249349 is 94394231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 964324 = 3505^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 13249349 - 216 = 13183813 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13249343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6624674 + 6624675.

It is an arithmetic number, because the mean of its divisors is an integer number (6624675).

Almost surely, 213249349 is an apocalyptic number.

It is an amenable number.

13249349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13249349 is an equidigital number, since it uses as much as digits as its factorization.

13249349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 13249349 is about 3639.9655218147. The cubic root of 13249349 is about 236.6272991011.

The spelling of 13249349 in words is "thirteen million, two hundred forty-nine thousand, three hundred forty-nine".