Base | Representation |
---|---|
bin | 1101011001010011100… |
… | …0100110001110011001 |
3 | 211000000020022202011221 |
4 | 3112110320212032121 |
5 | 12232302032200124 |
6 | 253415404452041 |
7 | 22424602224553 |
oct | 3262470461631 |
9 | 730006282157 |
10 | 230131131289 |
11 | 8966402a0a4 |
12 | 3872654a021 |
13 | 18916907947 |
14 | b1d1b024d3 |
15 | 5ebd851ce4 |
hex | 3594e26399 |
230131131289 has 2 divisors, whose sum is σ = 230131131290. Its totient is φ = 230131131288.
The previous prime is 230131131287. The next prime is 230131131331. The reversal of 230131131289 is 982131131032.
230131131289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 124679610000 + 105451521289 = 353100^2 + 324733^2 .
It is a cyclic number.
It is not a de Polignac number, because 230131131289 - 21 = 230131131287 is a prime.
Together with 230131131287, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (230131131281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115065565644 + 115065565645.
It is an arithmetic number, because the mean of its divisors is an integer number (115065565645).
Almost surely, 2230131131289 is an apocalyptic number.
It is an amenable number.
230131131289 is a deficient number, since it is larger than the sum of its proper divisors (1).
230131131289 is an equidigital number, since it uses as much as digits as its factorization.
230131131289 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7776, while the sum is 34.
The spelling of 230131131289 in words is "two hundred thirty billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred eighty-nine".
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