Base | Representation |
---|---|
bin | 11001001101000010… |
… | …01101011111111111 |
3 | 1021221000020020111201 |
4 | 30212201031133333 |
5 | 210202433022033 |
6 | 10114403200331 |
7 | 656212545001 |
oct | 144641153777 |
9 | 37830206451 |
10 | 13531142143 |
11 | 5813a82402 |
12 | 27576760a7 |
13 | 137843b8ac |
14 | 92510a371 |
15 | 542dbc47d |
hex | 32684d7ff |
13531142143 has 2 divisors, whose sum is σ = 13531142144. Its totient is φ = 13531142142.
The previous prime is 13531142117. The next prime is 13531142159. The reversal of 13531142143 is 34124113531.
It is a strong prime.
It is an emirp because it is prime and its reverse (34124113531) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13531142143 - 217 = 13531011071 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13531142113) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765571071 + 6765571072.
It is an arithmetic number, because the mean of its divisors is an integer number (6765571072).
Almost surely, 213531142143 is an apocalyptic number.
13531142143 is a deficient number, since it is larger than the sum of its proper divisors (1).
13531142143 is an equidigital number, since it uses as much as digits as its factorization.
13531142143 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4320, while the sum is 28.
Adding to 13531142143 its reverse (34124113531), we get a palindrome (47655255674).
The spelling of 13531142143 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-two thousand, one hundred forty-three".
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