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12344131 = 71173861
BaseRepresentation
bin101111000101…
…101101000011
3212020010222001
4233011231003
511130003011
61120324431
7206631502
oct57055503
925203861
1012344131
116a71368
124173717
132732827
1418d4839
15113c7c1
hexbc5b43

12344131 has 4 divisors (see below), whose sum is σ = 12518064. Its totient is φ = 12170200.

The previous prime is 12344089. The next prime is 12344161. The reversal of 12344131 is 13144321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13144321 = 89147689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12344131 is a prime.

It is a super-2 number, since 2×123441312 = 304755140290322, 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 = 12344099 and 12344108.

It is not an unprimeable number, because it can be changed into a prime (12344161) 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, 86860 + ... + 87001.

It is an arithmetic number, because the mean of its divisors is an integer number (3129516).

Almost surely, 212344131 is an apocalyptic number.

12344131 is a deficient number, since it is larger than the sum of its proper divisors (173933).

12344131 is an equidigital number, since it uses as much as digits as its factorization.

12344131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173932.

The product of its digits is 288, while the sum is 19.

The square root of 12344131 is about 3513.4215517071. The cubic root of 12344131 is about 231.1107643935.

Adding to 12344131 its reverse (13144321), we get a palindrome (25488452).

The spelling of 12344131 in words is "twelve million, three hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 71 173861 12344131