The half-life of ${}_{}^{}{}_{}^{226}\mathrm{Ra}$ is $1600$ years. Take molar mass $226\mathrm{g}\mathrm{mo}{\mathrm{l}}^{-1}$, $N_A=6.022\times 10^{23}$, $\ln 2=0.693$ and $1\mathrm{year}=3.156\times 10^7\mathrm{s}$. The activity of $1.00\mathrm{g}$ of radium-226, expressed in units of $10^{10}$ disintegrations per second, to two decimal places, is

Numerical answer type, answer in x 10^10 dps, tolerance 0.03.