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12663451144 = 233161782759
BaseRepresentation
bin10111100101100110…
…01110111000001000
31012200112111222020001
423302303032320020
5201413320414034
65452325412344
7625545362431
oct136263167010
935615458201
1012663451144
115409208303
122554b6a0b4
13126a748176
14881ba0488
154e1b23a14
hex2f2ccee08

12663451144 has 32 divisors (see below), whose sum is σ = 24549926400. Its totient is φ = 6117471360.

The previous prime is 12663451139. The next prime is 12663451219. The reversal of 12663451144 is 44115436621.

12663451144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 111637 + ... + 194395.

It is an arithmetic number, because the mean of its divisors is an integer number (767185200).

Almost surely, 212663451144 is an apocalyptic number.

It is an amenable number.

12663451144 is a deficient number, since it is larger than the sum of its proper divisors (11886475256).

12663451144 is a wasteful number, since it uses less digits than its factorization.

12663451144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83413 (or 83409 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

Adding to 12663451144 its reverse (44115436621), we get a palindrome (56778887765).

The spelling of 12663451144 in words is "twelve billion, six hundred sixty-three million, four hundred fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 31 62 124 248 617 1234 2468 4936 19127 38254 76508 82759 153016 165518 331036 662072 2565529 5131058 10262116 20524232 51062303 102124606 204249212 408498424 1582931393 3165862786 6331725572 12663451144