Search a number
-
+
12655312156 = 2231299934031
BaseRepresentation
bin10111100100101000…
…01011110100011100
31012122222012110122001
423302110023310130
5201404224442111
65451435132044
7625416243544
oct136224136434
935588173561
1012655312156
115404659373
1225522a4024
131268b586b6
14880a82324
154e10671c1
hex2f250bd1c

12655312156 has 24 divisors (see below), whose sum is σ = 22869504000. Its totient is φ = 6121316400.

The previous prime is 12655312151. The next prime is 12655312157. The reversal of 12655312156 is 65121355621.

It is a happy number.

12655312156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655312151) 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, 354861 + ... + 388891.

It is an arithmetic number, because the mean of its divisors is an integer number (952896000).

Almost surely, 212655312156 is an apocalyptic number.

It is an amenable number.

12655312156 is a deficient number, since it is larger than the sum of its proper divisors (10214191844).

12655312156 is a wasteful number, since it uses less digits than its factorization.

12655312156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37065 (or 37063 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

Adding to 12655312156 its reverse (65121355621), we get a palindrome (77776667777).

The spelling of 12655312156 in words is "twelve billion, six hundred fifty-five million, three hundred twelve thousand, one hundred fifty-six".

Divisors: 1 2 4 31 62 124 2999 5998 11996 34031 68062 92969 136124 185938 371876 1054961 2109922 4219844 102058969 204117938 408235876 3163828039 6327656078 12655312156