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12674405 = 52534881
BaseRepresentation
bin110000010110…
…010101100101
3212211221000102
4300112111211
511221040110
61131353445
7212505422
oct60262545
925757012
1012674405
117177517
1242b2885
132819c63
14197cd49
1511a55a5
hexc16565

12674405 has 4 divisors (see below), whose sum is σ = 15209292. Its totient is φ = 10139520.

The previous prime is 12674383. The next prime is 12674413. The reversal of 12674405 is 50447621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 2927521 = 3122^2 + 1711^2 .

It is not a de Polignac number, because 12674405 - 26 = 12674341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267436 + ... + 1267445.

It is an arithmetic number, because the mean of its divisors is an integer number (3802323).

Almost surely, 212674405 is an apocalyptic number.

It is an amenable number.

12674405 is a deficient number, since it is larger than the sum of its proper divisors (2534887).

12674405 is an equidigital number, since it uses as much as digits as its factorization.

12674405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534886.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 12674405 is about 3560.1130600024. The cubic root of 12674405 is about 233.1538154358.

The spelling of 12674405 in words is "twelve million, six hundred seventy-four thousand, four hundred five".

Divisors: 1 5 2534881 12674405