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13408043 = 111218913
BaseRepresentation
bin110011001001…
…011100101011
3221020012101012
4303021130223
511413024133
61155214135
7221652335
oct63113453
927205335
1013408043
117628730
1245a734b
132a15b6c
141ad0455
15129cb48
hexcc972b

13408043 has 4 divisors (see below), whose sum is σ = 14626968. Its totient is φ = 12189120.

The previous prime is 13408033. The next prime is 13408051. The reversal of 13408043 is 34080431.

13408043 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13408043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13408013) 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, 609446 + ... + 609467.

It is an arithmetic number, because the mean of its divisors is an integer number (3656742).

Almost surely, 213408043 is an apocalyptic number.

13408043 is a deficient number, since it is larger than the sum of its proper divisors (1218925).

13408043 is a wasteful number, since it uses less digits than its factorization.

13408043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218924.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13408043 is about 3661.6994688259. The cubic root of 13408043 is about 237.5682861816.

Adding to 13408043 its reverse (34080431), we get a palindrome (47488474).

The spelling of 13408043 in words is "thirteen million, four hundred eight thousand, forty-three".

Divisors: 1 11 1218913 13408043