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12115122124 = 2272377182029
BaseRepresentation
bin10110100100001111…
…00001011111001100
31011021022201222012211
423102013201133030
5144302432401444
65322101040204
7606136560520
oct132207413714
934238658184
1012115122124
115157741626
1224213b6064
1311b0c71421
1482d027d80
154ad910c34
hex2d21e17cc

12115122124 has 24 divisors (see below), whose sum is σ = 24240571040. Its totient is φ = 5189982336.

The previous prime is 12115122113. The next prime is 12115122137. The reversal of 12115122124 is 42122151121.

12115122124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12115122095 and 12115122104.

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, 24459 + ... + 157570.

Almost surely, 212115122124 is an apocalyptic number.

12115122124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12115122124 is an abundant number, since it is smaller than the sum of its proper divisors (12125448916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12115122124 is a wasteful number, since it uses less digits than its factorization.

12115122124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184417 (or 184415 counting only the distinct ones).

The product of its digits is 320, while the sum is 22.

Adding to 12115122124 its reverse (42122151121), we get a palindrome (54237273245).

The spelling of 12115122124 in words is "twelve billion, one hundred fifteen million, one hundred twenty-two thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 2377 4754 9508 16639 33278 66556 182029 364058 728116 1274203 2548406 5096812 432682933 865365866 1730731732 3028780531 6057561062 12115122124