[Python] Strange result when powering pandas integer series

The result when powering a pandas integer Series seems wrong.

# Standard Python
42**42
# 150130937545296572356771972164254457814047970568738777235893533016064

# Pandas series, float dtype
s = pd.Series([12, 42], index=range(2), dtype=float)
s**42
# 0 2.116471e+45
# 1 1.501309e+68
# dtype: float64

# Pandas series, integer dtype
s = pd.Series([12, 42], index=range(2), dtype=int)
s**42
# 0 0
# 1 4121466560160202752
# dtype: int64


How come?

Continue reading...