Search a number
-
+
12885361 = 37348253
BaseRepresentation
bin110001001001…
…110101110001
3220020122101121
4301021311301
511244312421
61140102241
7214344436
oct61116561
926218347
1012885361
117300a65
124394981
132891c98
1419d5b8d
1511e7d41
hexc49d71

12885361 has 4 divisors (see below), whose sum is σ = 13233652. Its totient is φ = 12537072.

The previous prime is 12885349. The next prime is 12885409. The reversal of 12885361 is 16358821.

12885361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7507600 + 5377761 = 2740^2 + 2319^2 .

It is a cyclic number.

It is not a de Polignac number, because 12885361 - 27 = 12885233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12888361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174090 + ... + 174163.

It is an arithmetic number, because the mean of its divisors is an integer number (3308413).

Almost surely, 212885361 is an apocalyptic number.

It is an amenable number.

12885361 is a deficient number, since it is larger than the sum of its proper divisors (348291).

12885361 is an equidigital number, since it uses as much as digits as its factorization.

12885361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348290.

The product of its digits is 11520, while the sum is 34.

The square root of 12885361 is about 3589.6185034067. The cubic root of 12885361 is about 234.4402613168.

The spelling of 12885361 in words is "twelve million, eight hundred eighty-five thousand, three hundred sixty-one".

Divisors: 1 37 348253 12885361