Table:
ffrdc
all federal r&d expenditures

all ffrdcs
18855593

department of defense
4194659

department of energy
9849051

department of health and human services
867042

department of homeland security
504086

department of transportation
162645

national aeronautics and space administration
2013307

national science foundation
244042

other
1020761

Statement: $4.2 billion was funded by the department of defense.
Question: how many thousand dollars were funded by the department of defense?
Answer: [4194659.0]