Need hex calculator with square root function

I need a calculator or something to find the square root of a very large hex
number such as
e9087427a4d5a01e8c3a420767651079d0a03adfc19e504627e768299c74d0d1bf10f059ca4c
d805327a90f32be4cbf880a638c07dad0d515770fc58b7835a540b51a1d00b40f80b53cd71b7
75e9af39514f696d988d4f14f6a32ac068eb6da66ff2a5d49a8fb1a47cbf623e59fe7d5163b1
c26d9f7
8000747e463bee0c3.

I have search the internet everyway I know how and come up with nothing. I
am using Virtual calc 2000. I even registered it. It does everything I need
except the hex square root function.  Can anyone point me in the right
direction. I am using Windows ME. Thanks.