Base | Representation |
---|---|
bin | 11101101000100000… |
… | …001010011110010001 |
3 | 10001010110020112212012 |
4 | 131220200022132101 |
5 | 1010130404024131 |
6 | 22341134512305 |
7 | 2204323550504 |
oct | 355040123621 |
9 | 101113215765 |
10 | 31818033041 |
11 | 125484a5183 |
12 | 61bb965695 |
13 | 3000c2a1b2 |
14 | 177ba9713b |
15 | c6354552b |
hex | 76880a791 |
31818033041 has 2 divisors, whose sum is σ = 31818033042. Its totient is φ = 31818033040.
The previous prime is 31818033031. The next prime is 31818033047. The reversal of 31818033041 is 14033081813.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30661761025 + 1156272016 = 175105^2 + 34004^2 .
It is a cyclic number.
It is not a de Polignac number, because 31818033041 - 26 = 31818032977 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31818032989 and 31818033007.
It is not a weakly prime, because it can be changed into another prime (31818033047) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15909016520 + 15909016521.
It is an arithmetic number, because the mean of its divisors is an integer number (15909016521).
Almost surely, 231818033041 is an apocalyptic number.
It is an amenable number.
31818033041 is a deficient number, since it is larger than the sum of its proper divisors (1).
31818033041 is an equidigital number, since it uses as much as digits as its factorization.
31818033041 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6912, while the sum is 32.
The spelling of 31818033041 in words is "thirty-one billion, eight hundred eighteen million, thirty-three thousand, forty-one".
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