Search a number
-
+
12770885 = 54162297
BaseRepresentation
bin110000101101…
…111001000101
3220000211100202
4300231321011
511232132020
61133420245
7213356621
oct60557105
926024322
1012770885
117232a56
12433a685
132851b4a
1419a6181
1511c3e75
hexc2de45

12770885 has 8 divisors (see below), whose sum is σ = 15699096. Its totient is φ = 9967360.

The previous prime is 12770881. The next prime is 12770897. The reversal of 12770885 is 58807721.

12770885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 33124 + 12737761 = 182^2 + 3569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12770885 - 22 = 12770881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30944 + ... + 31353.

It is an arithmetic number, because the mean of its divisors is an integer number (1962387).

Almost surely, 212770885 is an apocalyptic number.

It is an amenable number.

12770885 is a deficient number, since it is larger than the sum of its proper divisors (2928211).

12770885 is an equidigital number, since it uses as much as digits as its factorization.

12770885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62343.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 12770885 is about 3573.6375026015. The cubic root of 12770885 is about 233.7439244610.

The spelling of 12770885 in words is "twelve million, seven hundred seventy thousand, eight hundred eighty-five".

Divisors: 1 5 41 205 62297 311485 2554177 12770885