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12834123 = 34278041
BaseRepresentation
bin110000111101…
…010101001011
3220011001002220
4300331111023
511241142443
61135025123
7214042161
oct60752513
926131086
1012834123
117276515
12436b1a3
132874873
1419c1231
1511d7a83
hexc3d54b

12834123 has 4 divisors (see below), whose sum is σ = 17112168. Its totient is φ = 8556080.

The previous prime is 12834083. The next prime is 12834127. The reversal of 12834123 is 32143821.

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

It is a cyclic number.

It is not a de Polignac number, because 12834123 - 222 = 8639819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12834093 and 12834102.

It is not an unprimeable number, because it can be changed into a prime (12834127) 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, 2139018 + ... + 2139023.

It is an arithmetic number, because the mean of its divisors is an integer number (4278042).

Almost surely, 212834123 is an apocalyptic number.

12834123 is a deficient number, since it is larger than the sum of its proper divisors (4278045).

12834123 is an equidigital number, since it uses as much as digits as its factorization.

12834123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278044.

The product of its digits is 1152, while the sum is 24.

The square root of 12834123 is about 3582.4744241934. The cubic root of 12834123 is about 234.1291018179.

Adding to 12834123 its reverse (32143821), we get a palindrome (44977944).

The spelling of 12834123 in words is "twelve million, eight hundred thirty-four thousand, one hundred twenty-three".

Divisors: 1 3 4278041 12834123