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Ennacontillion.png

The ennacontillion is equal 103x10270+3, or 103 novemoctogintillion 3.[1] The term was coined by Jonathan Bowers.

Written out in decimal form ennacontillion (in the short scale) is:

103000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003

In long scale:

106000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000


Etymology

The name of this number is based on the suffix "-illion" and the prefix "ennaconta-" (from Greek 90).

Approximations in other notations

Notation Lower bound Upper bound
Arrow notation \(1000\uparrow(1+10\uparrow270)\)
Down-arrow notation \(1000\downarrow\downarrow91\) \(129\downarrow\downarrow\downarrow2\)
Steinhaus-Moser Notation 127[3][3] 128[3][3]
Copy notation 2[2[271]] 3[3[271]]
H* function H(H(89))
Taro's multivariable Ackermann function A(3,A(3,897)) A(3,A(3,898))
Pound-Star Notation #*((1))*((36))*8 #*((1))*((37))*8
BEAF {1000,1+{10,270}}
Hyper-E notation E(3+3E270)
Bashicu matrix system (0)(1)[895] (0)(1)[896]
Hyperfactorial array notation (152!)! (153!)!
Fast-growing hierarchy \(f_2(f_2(890))\) \(f_2(f_2(891))\)
Hardy hierarchy \(H_{\omega^22}(890)\) \(H_{\omega^22}(891)\)
Slow-growing hierarchy \(g_{\omega^{\omega^{\omega^22+\omega7}3+3}}(10)\)

Sources

See also

Jonathan Bowers' -illions

Tier 3: killillion · meg · gig · ter · pet · ex · zett · yott · xenn · dak · hend · dok · tradak · tedak · pedak · exdak · zedak · yodak · nedak · ik · iken · icod · ictr · icter · icpet · ikect · iczet · ikyot · icxen · trak · tek · pek · exak · zak · yok · nek · hot · bot · trot · tot · pot · exot · zot · yoot · not
Tier 4: kalillion · dal · tral · tal · pal · exal · zal · yal · nal · dakal · hotal · mej · dakej · hotej · gij · ast · lun · ferm · jov · sol · bet · gloc · gax · sup · vers · mult · bentriz* · pyr · gunt · kentr · onl · paptr · hous · hors · rec · calc · bucr · rend · kator · fret · vox · avt · trong
Tier 5: febrillion · mar · apr · may · jun · jul · aug · septemb · octob · novemb · decemb · undecemb · duodecemb
Tier 6: italillion · goth · ugar · pers · deser · shav · osman · cypr · phoen · kharosh · cuneif · gothicuneif
Tier 7: redillion · bittersw · orang · gold · yell · lim · green
Tier 8: erkillion
Tier 9: izzillion
Tier 10: meakoowillion
Tier 11: norvenillion
Tier 12: oneillion
Tier 13: kavudillion
Saibian's extensions in Tier 2: centimillillion · dumicr · novemnon...nongent · treicos · trioicos · dohect · triahect · tetrahect · pentahect · hexahect · heptahect · octahect · ennahect · enneennaconteennahect
Saibian's extensions in Tier 3: micrekill · nanekill · picekill · femtekill · attekill · zeptekill · yoctekill · xonekill · vecekill · mecekill · duecekill · icosekill · triacontekill · tetrecontekill · hectekill · enneenne...ennahect · traken · tracod · tractr · tracter · tracpet · trakect · traczet · trakyot · tracxen · nonek · nonecxen
Saibian's extensions in Tier 4: hendakal · dokal · tradakal · tedakal · pedakal · exadakal · zedakal · yodakal · nedakal · ikal · trakal · dakij · hotij · dakast · hotast · dakun · hotun · dakerm · hoterm · dakov · hotov · dakol · hotol · daket · hotet · dakloc · hotloc · dakax · hotax · dakup · hotup · dakers · hoters · dakult · hotult · nonecxenult · nonexce...nonexcen
Saibian's extensions in Tier 5:
Saibian's extensions in Tier 6:
Saibian's extensions in Tier 7:
Saibian's extensions in Tier 8:
*not Bowers'

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