Search a number
-
+
12856711 = 71996667
BaseRepresentation
bin110001000010…
…110110000111
3220012012002111
4301002312013
511242403321
61135321451
7214165060
oct61026607
926165074
1012856711
11729148a
124380287
132881c2a
1419c9567
1511de5e1
hexc42d87

12856711 has 8 divisors (see below), whose sum is σ = 15466880. Its totient is φ = 10439928.

The previous prime is 12856703. The next prime is 12856721. The reversal of 12856711 is 11765821.

12856711 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12856711 - 23 = 12856703 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 (12856721) 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 in 7 ways as a sum of consecutive naturals, for example, 48201 + ... + 48466.

It is an arithmetic number, because the mean of its divisors is an integer number (1933360).

Almost surely, 212856711 is an apocalyptic number.

12856711 is a deficient number, since it is larger than the sum of its proper divisors (2610169).

12856711 is an equidigital number, since it uses as much as digits as its factorization.

12856711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96693.

The product of its digits is 3360, while the sum is 31.

The square root of 12856711 is about 3585.6256078961. The cubic root of 12856711 is about 234.2663767112.

The spelling of 12856711 in words is "twelve million, eight hundred fifty-six thousand, seven hundred eleven".

Divisors: 1 7 19 133 96667 676669 1836673 12856711