Search a number
-
+
12768828 = 2231064069
BaseRepresentation
bin110000101101…
…011000111100
3220000201112120
4300231120330
511232100303
61133402540
7213350622
oct60553074
926021476
1012768828
117231456
124339450
132850c27
1419a5512
1511c3553
hexc2d63c

12768828 has 12 divisors (see below), whose sum is σ = 29793960. Its totient is φ = 4256272.

The previous prime is 12768827. The next prime is 12768851. The reversal of 12768828 is 82886721.

12768828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12768828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768827) 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, 532023 + ... + 532046.

It is an arithmetic number, because the mean of its divisors is an integer number (2482830).

Almost surely, 212768828 is an apocalyptic number.

It is an amenable number.

12768828 is an abundant number, since it is smaller than the sum of its proper divisors (17025132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12768828 is a wasteful number, since it uses less digits than its factorization.

12768828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064076 (or 1064074 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 12768828 is about 3573.3496890173. The cubic root of 12768828 is about 233.7313741152.

The spelling of 12768828 in words is "twelve million, seven hundred sixty-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 1064069 2128138 3192207 4256276 6384414 12768828