Base | Representation |
---|---|
bin | 11000101001001011… |
… | …00001110101100011 |
3 | 1021011001010001220101 |
4 | 30110211201311203 |
5 | 204043423043011 |
6 | 10024454523231 |
7 | 645600362641 |
oct | 142445416543 |
9 | 37131101811 |
10 | 13230284131 |
11 | 567a172319 |
12 | 2692966517 |
13 | 132b0003bc |
14 | 8d7192191 |
15 | 52678e2c1 |
hex | 314961d63 |
13230284131 has 2 divisors, whose sum is σ = 13230284132. Its totient is φ = 13230284130.
The previous prime is 13230284107. The next prime is 13230284143. The reversal of 13230284131 is 13148203231.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13230284131 - 25 = 13230284099 is a prime.
It is a super-2 number, since 2×132302841312 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 13230284131.
It is not a weakly prime, because it can be changed into another prime (13233284131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615142065 + 6615142066.
It is an arithmetic number, because the mean of its divisors is an integer number (6615142066).
Almost surely, 213230284131 is an apocalyptic number.
13230284131 is a deficient number, since it is larger than the sum of its proper divisors (1).
13230284131 is an equidigital number, since it uses as much as digits as its factorization.
13230284131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 28.
Adding to 13230284131 its reverse (13148203231), we get a palindrome (26378487362).
The spelling of 13230284131 in words is "thirteen billion, two hundred thirty million, two hundred eighty-four thousand, one hundred thirty-one".
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