Search a number
-
+
12885349 is a prime number
BaseRepresentation
bin110001001001…
…110101100101
3220020122101011
4301021311211
511244312344
61140102221
7214344421
oct61116545
926218334
1012885349
117300a54
124394971
132891c89
1419d5b81
1511e7d34
hexc49d65

12885349 has 2 divisors, whose sum is σ = 12885350. Its totient is φ = 12885348.

The previous prime is 12885343. The next prime is 12885409. The reversal of 12885349 is 94358821.

12885349 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12852225 + 33124 = 3585^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 12885349 - 25 = 12885317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12885343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6442674 + 6442675.

It is an arithmetic number, because the mean of its divisors is an integer number (6442675).

Almost surely, 212885349 is an apocalyptic number.

It is an amenable number.

12885349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12885349 is an equidigital number, since it uses as much as digits as its factorization.

12885349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 12885349 is about 3589.6168319195. The cubic root of 12885349 is about 234.4401885395.

The spelling of 12885349 in words is "twelve million, eight hundred eighty-five thousand, three hundred forty-nine".