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Not to be confused with Quinquagintoogol.

Quinquinquagintoogol is equal to \(\{\underbrace{10, 10, 10, 10, 10, \dots , 10, 10, 10, 10, 10}_{55\text{ tens}}, 100\}\). This term was coined by NigerianPidgin[1]

Etymology[]

The name of the number is based on Latin prefix "quinquagint-" and the number "googol".

Approximations[]

Notation Approximation
Extended Hyper-E notation \(E10\#^{56}101\)
Bird's array notation \(\{\underbrace{10, 10, 10, 10, 10, \dots , 10, 10, 10, 10, 10}_{55\text{ tens}}, 100\}\) (exact)
Fast-growing hierarchy \(f_{\omega^{54}}(100)\)
Hardy hierarchy \(H_{\omega^{(\omega^{54

})}}(100)\)

Sources[]

  1. My Large Numbers Coined. Accessed 2025-01-20.