Base | Representation |
---|---|
bin | 11000100101101011… |
… | …10111011000011001 |
3 | 1021002000000220102121 |
4 | 30102311313120121 |
5 | 204013424342444 |
6 | 10021531301241 |
7 | 645063516115 |
oct | 142265673031 |
9 | 37060026377 |
10 | 13201012249 |
11 | 5664699987 |
12 | 2684baa821 |
13 | 1324c21969 |
14 | 8d3332745 |
15 | 523e0b084 |
hex | 312d77619 |
13201012249 has 2 divisors, whose sum is σ = 13201012250. Its totient is φ = 13201012248.
The previous prime is 13201012243. The next prime is 13201012271. The reversal of 13201012249 is 94221010231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 11643920649 + 1557091600 = 107907^2 + 39460^2 .
It is an emirp because it is prime and its reverse (94221010231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13201012249 - 23 = 13201012241 is a prime.
It is not a weakly prime, because it can be changed into another prime (13201012241) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600506124 + 6600506125.
It is an arithmetic number, because the mean of its divisors is an integer number (6600506125).
Almost surely, 213201012249 is an apocalyptic number.
It is an amenable number.
13201012249 is a deficient number, since it is larger than the sum of its proper divisors (1).
13201012249 is an equidigital number, since it uses as much as digits as its factorization.
13201012249 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 25.
The spelling of 13201012249 in words is "thirteen billion, two hundred one million, twelve thousand, two hundred forty-nine".
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