Clare, yes, that's right, says my pocket calculator.
There are eleven persons to the Trinity.
No, there's a mistake, because the word "eleven" means Arabic numeral and is not equaling the binary "11" but binary "1011".
If you would have said
There are 11 persons... then the 11 could be ambiguous. And that's why there's the "0b" prefix for binary notation, or "0x" for hexadecimal numbering system.
Yes yes, I know, it was meant as a joke, but... :-)