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13275049 is a prime number
BaseRepresentation
bin110010101000…
…111110101001
3220222102221111
4302220332221
511344300144
61152310321
7220556524
oct62507651
926872844
1013275049
117547817
1245423a1
13299a478
141a97bbb
151273534
hexca8fa9

13275049 has 2 divisors, whose sum is σ = 13275050. Its totient is φ = 13275048.

The previous prime is 13275047. The next prime is 13275061. The reversal of 13275049 is 94057231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13271449 + 3600 = 3643^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 13275049 - 21 = 13275047 is a prime.

Together with 13275047, it forms a pair of twin primes.

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 13275049.

It is not a weakly prime, because it can be changed into another prime (13275043) 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, 6637524 + 6637525.

It is an arithmetic number, because the mean of its divisors is an integer number (6637525).

Almost surely, 213275049 is an apocalyptic number.

It is an amenable number.

13275049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13275049 is an equidigital number, since it uses as much as digits as its factorization.

13275049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13275049 is about 3643.4940647680. The cubic root of 13275049 is about 236.7801970234.

The spelling of 13275049 in words is "thirteen million, two hundred seventy-five thousand, forty-nine".