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12704107 = 13977239
BaseRepresentation
bin110000011101…
…100101101011
3212220102202111
4300131211223
511223012412
61132143151
7212661133
oct60354553
925812674
1012704107
117197869
124307ab7
13282a630
141989ac3
1511ae2a7
hexc1d96b

12704107 has 4 divisors (see below), whose sum is σ = 13681360. Its totient is φ = 11726856.

The previous prime is 12704093. The next prime is 12704113. The reversal of 12704107 is 70140721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70140721 = 710020103.

It is a cyclic number.

It is not a de Polignac number, because 12704107 - 211 = 12702059 is a prime.

It is a super-2 number, since 2×127041072 = 322788669334898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12704177) 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, 488607 + ... + 488632.

It is an arithmetic number, because the mean of its divisors is an integer number (3420340).

Almost surely, 212704107 is an apocalyptic number.

12704107 is a deficient number, since it is larger than the sum of its proper divisors (977253).

12704107 is an equidigital number, since it uses as much as digits as its factorization.

12704107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977252.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 12704107 is about 3564.2821156581. The cubic root of 12704107 is about 233.3358024682.

Adding to 12704107 its reverse (70140721), we get a palindrome (82844828).

The spelling of 12704107 in words is "twelve million, seven hundred four thousand, one hundred seven".

Divisors: 1 13 977239 12704107