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13231232133 = 371787352579
BaseRepresentation
bin11000101001010010…
…01001010010000101
31021011002220020022120
430110221021102011
5204044143412013
610024531120153
7645611421540
oct142451112205
937132806276
1013231232133
11567a75a599
122693143059
13132b272a52
148d735b857
155268ca123
hex314a49485

13231232133 has 16 divisors (see below), whose sum is σ = 20173217280. Its totient is φ = 7556451696.

The previous prime is 13231232111. The next prime is 13231232143. The reversal of 13231232133 is 33123213231.

It is not a de Polignac number, because 13231232133 - 214 = 13231215749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231232143) 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 15 ways as a sum of consecutive naturals, for example, 138763 + ... + 213816.

It is an arithmetic number, because the mean of its divisors is an integer number (1260826080).

Almost surely, 213231232133 is an apocalyptic number.

It is an amenable number.

13231232133 is a deficient number, since it is larger than the sum of its proper divisors (6941985147).

13231232133 is a wasteful number, since it uses less digits than its factorization.

13231232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354376.

The product of its digits is 1944, while the sum is 24.

Adding to 13231232133 its reverse (33123213231), we get a palindrome (46354445364).

The spelling of 13231232133 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred thirty-three".

Divisors: 1 3 7 21 1787 5361 12509 37527 352579 1057737 2468053 7404159 630058673 1890176019 4410410711 13231232133