Search a number
-
+
13231232269 is a prime number
BaseRepresentation
bin11000101001010010…
…01001010100001101
31021011002220020111121
430110221021110031
5204044143413034
610024531120541
7645611422123
oct142451112415
937132806447
1013231232269
11567a75a702
122693143151
13132b272b28
148d735b913
155268ca1b4
hex314a4950d

13231232269 has 2 divisors, whose sum is σ = 13231232270. Its totient is φ = 13231232268.

The previous prime is 13231232191. The next prime is 13231232291. The reversal of 13231232269 is 96223213231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7403742025 + 5827490244 = 86045^2 + 76338^2 .

It is an emirp because it is prime and its reverse (96223213231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13231232269 - 213 = 13231224077 is a prime.

It is a super-2 number, since 2×132312322692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231232669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615616134 + 6615616135.

It is an arithmetic number, because the mean of its divisors is an integer number (6615616135).

Almost surely, 213231232269 is an apocalyptic number.

It is an amenable number.

13231232269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231232269 is an equidigital number, since it uses as much as digits as its factorization.

13231232269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The spelling of 13231232269 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred sixty-nine".