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12826349 = 19675071
BaseRepresentation
bin110000111011…
…011011101101
3220010122102222
4300323123231
511240420344
61134525125
7214010414
oct60733355
926118388
1012826349
117270698
1243667a5
132871173
1419bc47b
1511d55ee
hexc3b6ed

12826349 has 4 divisors (see below), whose sum is σ = 13501440. Its totient is φ = 12151260.

The previous prime is 12826327. The next prime is 12826379. The reversal of 12826349 is 94362821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94362821 = 713480403.

It is a de Polignac number, because none of the positive numbers 2k-12826349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12826379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337517 + ... + 337554.

It is an arithmetic number, because the mean of its divisors is an integer number (3375360).

Almost surely, 212826349 is an apocalyptic number.

12826349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12826349 is a deficient number, since it is larger than the sum of its proper divisors (675091).

12826349 is an equidigital number, since it uses as much as digits as its factorization.

12826349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675090.

The product of its digits is 20736, while the sum is 35.

The square root of 12826349 is about 3581.3892555823. The cubic root of 12826349 is about 234.0818193439.

The spelling of 12826349 in words is "twelve million, eight hundred twenty-six thousand, three hundred forty-nine".

Divisors: 1 19 675071 12826349