On the average value of $π(t)-\text{li}(t)$

We prove that the Riemann hypothesis is equivalent to the condition $\int_{2}^x\left(π(t)-\text{li}(t)\right)\mathrm{d}t<0$ for all $x>2$. Here, $π(t)$ is the prime-counting function and $\text{li}(t)$ is the logarithmic integral. This makes explicit a claim of Pintz (1991). Moreover, we prove an analogous result for the Chebyshev function $θ(t)$ and discuss the extent to which one can make related claims unconditionally.

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