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12326131 = 29425039
BaseRepresentation
bin101111000001…
…010011110011
3212012020021101
4233001103303
511123414011
61120105231
7206525146
oct57012363
925166241
1012326131
116a59894
124165217
13272758c
1418cc05d
1511372c1
hexbc14f3

12326131 has 4 divisors (see below), whose sum is σ = 12751200. Its totient is φ = 11901064.

The previous prime is 12326063. The next prime is 12326179. The reversal of 12326131 is 13162321.

12326131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12326131 - 29 = 12325619 is a prime.

It is a super-2 number, since 2×123261312 = 303867010858322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12326099 and 12326108.

It is not an unprimeable number, because it can be changed into a prime (12321131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212491 + ... + 212548.

It is an arithmetic number, because the mean of its divisors is an integer number (3187800).

Almost surely, 212326131 is an apocalyptic number.

12326131 is a deficient number, since it is larger than the sum of its proper divisors (425069).

12326131 is an equidigital number, since it uses as much as digits as its factorization.

12326131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425068.

The product of its digits is 216, while the sum is 19.

The square root of 12326131 is about 3510.8590116950. The cubic root of 12326131 is about 230.9983758311.

Adding to 12326131 its reverse (13162321), we get a palindrome (25488452).

The spelling of 12326131 in words is "twelve million, three hundred twenty-six thousand, one hundred thirty-one".

Divisors: 1 29 425039 12326131