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How many parallactic second are there in...

How many parallactic second are there inone Astronomical unit?
1 parallactic second `=3.08xx10^(16)m`
1 Astronomical unit `=1.496xx10^(11)m`

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`(1AU)/(1"parsec")=(1.496xx10^(11))/(3.08xx10^(16))=(1.496xx10^(11)xx10^(-15))/3.08`
`=(1.496xx10^(-5))/3008=0.485xx10^(-5)`
`=4.85xx10^(-6)` par sec
`4.85xx10^(-6)` parsec present in one astronomical unit.
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