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13112043 = 372932131
BaseRepresentation
bin110010000001…
…001011101011
3220200011100020
4302001023223
511324041133
61145011523
7216310350
oct62011353
926604306
1013112043
1174462aa
124483ba3
132941209
141a54627
1512400b3
hexc812eb

13112043 has 16 divisors (see below), whose sum is σ = 20057856. Its totient is φ = 7463520.

The previous prime is 13111961. The next prime is 13112051. The reversal of 13112043 is 34021131.

It is not a de Polignac number, because 13112043 - 213 = 13103851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13112053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5088 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (1253616).

Almost surely, 213112043 is an apocalyptic number.

13112043 is a deficient number, since it is larger than the sum of its proper divisors (6945813).

13112043 is a wasteful number, since it uses less digits than its factorization.

13112043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13112043 is about 3621.0555091023. The cubic root of 13112043 is about 235.8070516674.

Adding to 13112043 its reverse (34021131), we get a palindrome (47133174).

The spelling of 13112043 in words is "thirteen million, one hundred twelve thousand, forty-three".

Divisors: 1 3 7 21 293 879 2051 2131 6153 6393 14917 44751 624383 1873149 4370681 13112043