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12653128 = 232368767
BaseRepresentation
bin110000010001…
…001001001000
3212210211211101
4300101021020
511214400003
61131111144
7212356405
oct60211110
925724741
1012653128
117162534
1242a24b4
132810377
1419752ac
15119e11d
hexc11248

12653128 has 16 divisors (see below), whose sum is σ = 24756480. Its totient is φ = 6051408.

The previous prime is 12653119. The next prime is 12653129. The reversal of 12653128 is 82135621.

It is a junction number, because it is equal to n+sod(n) for n = 12653096 and 12653105.

It is not an unprimeable number, because it can be changed into a prime (12653129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34200 + ... + 34567.

It is an arithmetic number, because the mean of its divisors is an integer number (1547280).

Almost surely, 212653128 is an apocalyptic number.

It is an amenable number.

12653128 is a deficient number, since it is larger than the sum of its proper divisors (12103352).

12653128 is a wasteful number, since it uses less digits than its factorization.

12653128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68796 (or 68792 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12653128 is about 3557.1235570331. The cubic root of 12653128 is about 233.0232743364.

Adding to 12653128 its reverse (82135621), we get a palindrome (94788749).

The spelling of 12653128 in words is "twelve million, six hundred fifty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 23 46 92 184 68767 137534 275068 550136 1581641 3163282 6326564 12653128