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12676431 = 34225477
BaseRepresentation
bin110000010110…
…110101001111
3212212000210110
4300112311033
511221121211
61131411103
7212514345
oct60266517
925760713
1012676431
117178a99
1242b3a93
13281ab61
14197d995
1511a5ea6
hexc16d4f

12676431 has 4 divisors (see below), whose sum is σ = 16901912. Its totient is φ = 8450952.

The previous prime is 12676429. The next prime is 12676457. The reversal of 12676431 is 13467621.

12676431 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 not a de Polignac number, because 12676431 - 21 = 12676429 is a prime.

It is a super-2 number, since 2×126764312 = 321383805795522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12676481) 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, 2112736 + ... + 2112741.

It is an arithmetic number, because the mean of its divisors is an integer number (4225478).

Almost surely, 212676431 is an apocalyptic number.

12676431 is a deficient number, since it is larger than the sum of its proper divisors (4225481).

12676431 is an equidigital number, since it uses as much as digits as its factorization.

12676431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225480.

The product of its digits is 6048, while the sum is 30.

The square root of 12676431 is about 3560.3975901576. The cubic root of 12676431 is about 233.1662379641.

The spelling of 12676431 in words is "twelve million, six hundred seventy-six thousand, four hundred thirty-one".

Divisors: 1 3 4225477 12676431