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The Avogadro constant is a constant equal to the number of constituent particles contained within one mole of substance.[1] It is approximately equal to $$6.02214085 \times 10^{23}\text{ mol}^{-1}$$.

A related term is Avogadro's number, a dimensionless constant equal to the number of atoms in a gram of hydrogen. The value of the Avogadro constant, when given in SI base units, is equal to the Avogadro constant.

## Approximations Edit

Notation Lower bound Upper bound
Scientific notation $$6.022\times10^{23}$$ $$6.023\times10^{23}$$
Arrow notation $$5\uparrow34$$ $$2\uparrow79$$
Steinhaus-Moser Notation 18[3] 19[3]
Copy notation 5[24] 6[24]
Taro's multivariable Ackermann function A(3,75) A(3,76)
Pound-Star Notation #*(2,1,2,3)*5 #*(3,1,2,3)*5
BEAF {5,34} {2,79}
Hyper-E notation 6E23 E[2]79
Hyperfactorial array notation 23! 24!
Fast-growing hierarchy $$f_2(72)$$ $$f_2(73)$$
Hardy hierarchy $$H_{\omega^2}(72)$$ $$H_{\omega^2}(73)$$
Slow-growing hierarchy $$g_{\omega^{17}20+\omega^{15}20}(21)$$ $$g_{\omega^{17}20+\omega^{16}}(21)$$

## Sources Edit

1. https://en.wikipedia.org/wiki/Avogadro_constant

## See also Edit

Large numbers in science