Speaker John Boehner's magic number for passage of his debt bill is 216 votes.
Rep. Gabby Giffords (D-AZ) is still recovering from her gunshot wounds and will not vote.
Rep. Maurice Hinchey (D-NY) is recovering from colon cancer surgery and will not vote.
With the two other House vacancies -- in New York (Anthony Weiner's old seat) and in Nevada (Dean Heller's) -- the total number of House members is 431 members
Interestingly, Rep. David Wu (D-OR) has said he will resign after the debt vote, even though he is accused of having an unwanted sexual encounter with a teenage girl. The Democratic Leadership is fine with him staying around until after the debt issue.