Search a number
-
+
12132816806 = 211678231219
BaseRepresentation
bin10110100110010110…
…00001011110100110
31011022120000221202102
423103023001132212
5144322000114211
65323532212102
7606443145515
oct132313013646
934276027672
1012132816806
115166727930
12242730a032
1311b4828456
1483151267c
154b0258a3b
hex2d32c17a6

12132816806 has 16 divisors (see below), whose sum is σ = 20150026560. Its totient is φ = 5432603880.

The previous prime is 12132816803. The next prime is 12132816811. The reversal of 12132816806 is 60861823121.

12132816806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12132816806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132816803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4114136 + ... + 4117083.

It is an arithmetic number, because the mean of its divisors is an integer number (1259376660).

Almost surely, 212132816806 is an apocalyptic number.

12132816806 is a deficient number, since it is larger than the sum of its proper divisors (8017209754).

12132816806 is a wasteful number, since it uses less digits than its factorization.

12132816806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231299.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 12132816806 in words is "twelve billion, one hundred thirty-two million, eight hundred sixteen thousand, eight hundred six".

Divisors: 1 2 11 22 67 134 737 1474 8231219 16462438 90543409 181086818 551491673 1102983346 6066408403 12132816806