Octogintoogol is equal to \(\{\underbrace{10, 10, 10, 10, 10, \dots , 10, 10, 10, 10, 10}_{80\text{ tens}}, 100\}\). This term was coined by YouTuber Douglas Shamlin Jr.[1]
Etymology[]
The name of the number is based on the numbers "octogintillion" and "googol".
Approximations[]
| Notation | Approximation |
|---|---|
| Extended Hyper-E notation | \(E10\#^{81}101\) |
| Bird's array notation | \(\{\underbrace{10, 10, 10, 10, 10, \dots , 10, 10, 10, 10, 10}_{80\text{ tens}}, 100\}\) (exact) |
| Fast-growing hierarchy | \(f_{\omega^{79}}(100)\) |
| Hardy hierarchy | \(H_{\omega^{(\omega^{79})}}(100)\) |
Sources[]
- ↑ D. Shamlin Jr., Ultimate List of Large Numbers - Part 1 of 4 | The Beginning! (Reuploaded by Dr2xmillion). Accessed 2022-05-30.