The myria-dekaxis is equal to E1#1#1#1#1#1#1#1#10,000 using Hyper-E notation.[1] The term was coined by Sbiis Saibian.

Aarex Tiaokhiao calls this number novahol.[2]

Approximations in other notations

Notation Approximation
Up-arrow notation \(10 \uparrow^9 10000\) (exact)
Chained arrow notation \(10 \rightarrow 10000 \rightarrow 9 \) (exact)
Hyperfactorial array notation \(10002!8\)
BEAF \(\{10,10000,9\}\) (exact)
Fast-growing hierarchy \(f_{10}(10000)\)
Hardy hierarchy \(H_{\omega^{10}}(10000)\)
Slow-growing hierarchy \(g_{\varphi(8,0)}(10000)\)


  1. Sbiis Saibian, Hyper-E Numbers - Large Numbers
  2. Part 1 (LAN) - Aarex Googology
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