Compounded **n** times per year:

total = initial * ( 1 + rate / **n** ) ^{n * time}

$.01 compounded

annually for 2000 years at 3% = $473

hexillion

compounded

quarterly (

**n**=4) = $913 hexillion

compounded

monthly (

**n**=12) = $1060 hexillion

Compounded continuously:

total = initial * e ^{rate * time}

$.01 compounded continuously for 2000 years at 3% = $1142

hexillion
Where rate is in decimal. (ie 9% = .09)