The Fibonal, coined by SuperJedi224, is equal to the 50th term in the fibonacci sequence (L being the roman numeral for 50), starting from the first one.

Its full decimal expansion is 12,586,269,025.

Its prime factorization is 52 × 11 × 101 × 151 × 3001.

Approximations in other notations Edit

Notation Lower bound Upper bound
Scientific notation \(1.2586269025\times10^{10}\)
Arrow notation \(48\uparrow6\) \(6\uparrow13\)
Steinhaus-Moser Notation 10[3] 11[3]
Copy notation 1[11] 2[11]
Taro's multivariable Ackermann function A(3,30) A(3,31)
Pound-Star Notation #*(3,0,6)*3 #*(3,3)*6
BEAF {48,6} {6,13}
Hyper-E notation E10 E[6]13
Bashicu matrix system (0)(0)[334] (0)(0)[335]
Hyperfactorial array notation 13! 14!
Fast-growing hierarchy \(f_2(28)\) \(f_2(29)\)
Hardy hierarchy \(H_{\omega^2}(28)\) \(H_{\omega^2}(29)\)
Slow-growing hierarchy \(g_{\omega^5\times25+\omega^3\times25+\omega5}(55)\)


Source: Naming Large Fibonacci Numbers

See alsoEdit

Fibonacci Numbers by SuperJedi224

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation