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13432123 = 76917467
BaseRepresentation
bin110011001111…
…010100111011
3221021102102001
4303033110323
511414311443
61155521431
7222112465
oct63172473
927242361
1013432123
117644831
1245b9277
132a23b03
141ad9135
1512a4d4d
hexccf53b

13432123 has 4 divisors (see below), whose sum is σ = 13450360. Its totient is φ = 13413888.

The previous prime is 13432121. The next prime is 13432129. The reversal of 13432123 is 32123431.

13432123 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, and also an emirpimes, since its reverse is a distinct semiprime: 32123431 = 73440047.

It is a cyclic number.

It is not a de Polignac number, because 13432123 - 21 = 13432121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13432123.

It is not an unprimeable number, because it can be changed into a prime (13432121) 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, 7965 + ... + 9502.

It is an arithmetic number, because the mean of its divisors is an integer number (3362590).

Almost surely, 213432123 is an apocalyptic number.

13432123 is a deficient number, since it is larger than the sum of its proper divisors (18237).

13432123 is an equidigital number, since it uses as much as digits as its factorization.

13432123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18236.

The product of its digits is 432, while the sum is 19.

The square root of 13432123 is about 3664.9860845575. The cubic root of 13432123 is about 237.7104203495.

Adding to 13432123 its reverse (32123431), we get a palindrome (45555554).

The spelling of 13432123 in words is "thirteen million, four hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 769 17467 13432123