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12831324 = 2231128837
BaseRepresentation
bin110000111100…
…101001011100
3220010220021020
4300330221130
511241100244
61135004140
7214031052
oct60745134
926126236
1012831324
117274400
124369650
1328734cc
1419c01d2
1511d6d19
hexc3ca5c

12831324 has 36 divisors (see below), whose sum is σ = 32912712. Its totient is φ = 3887840.

The previous prime is 12831317. The next prime is 12831331. The reversal of 12831324 is 42313821.

12831324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12831317) and next prime (12831331).

It is a junction number, because it is equal to n+sod(n) for n = 12831294 and 12831303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2967 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (914242).

Almost surely, 212831324 is an apocalyptic number.

It is an amenable number.

12831324 is an abundant number, since it is smaller than the sum of its proper divisors (20081388).

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

12831324 is a wasteful number, since it uses less digits than its factorization.

12831324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866 (or 8853 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 12831324 is about 3582.0837511147. The cubic root of 12831324 is about 234.1120801379.

The spelling of 12831324 in words is "twelve million, eight hundred thirty-one thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 8837 17674 26511 35348 53022 97207 106044 194414 291621 388828 583242 1069277 1166484 2138554 3207831 4277108 6415662 12831324