Meicosehectillion is equal to \(10^{3\cdot10^{363} + 3}\).[1] It is defined using Sbiis Saibian's generalization of Jonathan Bowers' -illion system.
Approximations[]
| Notation | Lower bound | Upper bound |
|---|---|---|
| Arrow notation | \(1000\uparrow(1+10\uparrow363)\) | |
| Down-arrow notation | \(1000\downarrow\downarrow122\) | \(186\downarrow\downarrow161\) |
| Steinhaus-Moser Notation | 163[3][3] | 164[3][3] |
| Copy notation | 2[2[364]] | 3[3[364]] |
| H* function | H(H(120)) | |
| Taro's multivariable Ackermann function | A(3,A(3,1206)) | A(3,A(3,1207)) |
| Pound-Star Notation | #*((1))*((59))*9 | #*((1))*((60))*9 |
| BEAF | {1000,1+{10,363}} | |
| Hyper-E notation | E(3+3E363) | |
| Bashicu matrix system | (0)(1)[34] | (0)(1)[35] |
| Hyperfactorial array notation | (193!)! | (194!)! |
| Fast-growing hierarchy | \(f_2(f_2(1198))\) | \(f_2(f_2(1199))\) |
| Hardy hierarchy | \(H_{\omega^22}(1198)\) | \(H_{\omega^22}(1199)\) |
| Slow-growing hierarchy | \(g_{\omega^{\omega^{\omega^23+\omega6+3}3+3}}(10)\) | |