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12631315316 = 22171636171847
BaseRepresentation
bin10111100001110001…
…01001001101110100
31012121022001022011012
423300320221031310
5201332104042231
65445220531352
7625005260114
oct136070511564
935538038135
1012631315316
1153a2059174
122546250b58
131263ba5c99
1487b7d7044
154dddc6e2b
hex2f0e29374

12631315316 has 48 divisors (see below), whose sum is σ = 23599610496. Its totient is φ = 5894913024.

The previous prime is 12631315267. The next prime is 12631315327. The reversal of 12631315316 is 61351313621.

12631315316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×126313153162 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6837905 + ... + 6839751.

It is an arithmetic number, because the mean of its divisors is an integer number (491658552).

Almost surely, 212631315316 is an apocalyptic number.

It is an amenable number.

12631315316 is a deficient number, since it is larger than the sum of its proper divisors (10968295180).

12631315316 is a wasteful number, since it uses less digits than its factorization.

12631315316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648 (or 2646 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

Adding to 12631315316 its reverse (61351313621), we get a palindrome (73982628937).

The spelling of 12631315316 in words is "twelve billion, six hundred thirty-one million, three hundred fifteen thousand, three hundred sixteen".

Divisors: 1 2 4 17 34 68 163 326 617 652 1234 1847 2468 2771 3694 5542 7388 10489 11084 20978 31399 41956 62798 100571 125596 201142 301061 402284 602122 1139599 1204244 1709707 2279198 3419414 4558396 5118037 6838828 10236074 19373183 20472148 38746366 77492732 185754637 371509274 743018548 3157828829 6315657658 12631315316