Base | Representation |
---|---|
bin | 100100011100111… |
… | …1000011101001001 |
3 | 10011020112121001021 |
4 | 1020321320131021 |
5 | 10001110224001 |
6 | 321211552441 |
7 | 42211313266 |
oct | 11071703511 |
9 | 3136477037 |
10 | 1223133001 |
11 | 578476a22 |
12 | 2a175b721 |
13 | 16653394c |
14 | b863226d |
15 | 725a9ba1 |
hex | 48e78749 |
1223133001 has 2 divisors, whose sum is σ = 1223133002. Its totient is φ = 1223133000.
The previous prime is 1223132987. The next prime is 1223133011. The reversal of 1223133001 is 1003313221.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 845413776 + 377719225 = 29076^2 + 19435^2 .
It is a cyclic number.
It is not a de Polignac number, because 1223133001 - 25 = 1223132969 is a prime.
It is not a weakly prime, because it can be changed into another prime (1223133011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611566500 + 611566501.
It is an arithmetic number, because the mean of its divisors is an integer number (611566501).
Almost surely, 21223133001 is an apocalyptic number.
It is an amenable number.
1223133001 is a deficient number, since it is larger than the sum of its proper divisors (1).
1223133001 is an equidigital number, since it uses as much as digits as its factorization.
1223133001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1223133001 is about 34973.3184156151. The cubic root of 1223133001 is about 1069.4436217122.
Adding to 1223133001 its reverse (1003313221), we get a palindrome (2226446222).
The spelling of 1223133001 in words is "one billion, two hundred twenty-three million, one hundred thirty-three thousand, one".
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