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12887341 is a prime number
BaseRepresentation
bin110001001010…
…010100101101
3220020202002221
4301022110231
511244343331
61140115341
7214353265
oct61122455
926222087
1012887341
1173024a5
124395b51
132892b5c
1419d67a5
1511e8711
hexc4a52d

12887341 has 2 divisors, whose sum is σ = 12887342. Its totient is φ = 12887340.

The previous prime is 12887299. The next prime is 12887389. The reversal of 12887341 is 14378821.

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., 8003241 + 4884100 = 2829^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 12887341 - 27 = 12887213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12887297 and 12887306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12882341) 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, 6443670 + 6443671.

It is an arithmetic number, because the mean of its divisors is an integer number (6443671).

Almost surely, 212887341 is an apocalyptic number.

It is an amenable number.

12887341 is a deficient number, since it is larger than the sum of its proper divisors (1).

12887341 is an equidigital number, since it uses as much as digits as its factorization.

12887341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 34.

The square root of 12887341 is about 3589.8942881372. The cubic root of 12887341 is about 234.4522689468.

The spelling of 12887341 in words is "twelve million, eight hundred eighty-seven thousand, three hundred forty-one".