Twenty-twos is equal to \(2 \lfloor 10^{20} / 9\rfloor\), or 20 copies of 2:[1]
- 22,222,222,222,222,222,222 or hypermathematically by interior superscription as \(2^{18}2\)
- googology
Its prime factorization is 2 × 11 × 41 × 101 × 271 × 3,541 × 9,091 × 27,961.
Approximations[]
Notation | Lower bound | Upper bound |
---|---|---|
Scientific notation | \(2.222\times10^{19}\) | \(2.223\times10^{19}\) |
Arrow notation | \(86\uparrow10\) | \(41\uparrow12\) |
Steinhaus-Moser Notation | 16[3] | 17[3] |
Copy notation | 2[20] | |
Taro's multivariable Ackermann function | A(3,61) | A(3,62) |
Pound-Star Notation | #*(6,4,4)*6 | #*(2,3,2,3)*4 |
BEAF | {86,10} | {41,12} |
Hyper-E notation | 2E19 | 3E19 |
Bashicu matrix system | (0)(0)[68658] | (0)(0)[68659] |
Hyperfactorial array notation | 20! | 21! |
Fast-growing hierarchy | \(f_2(58)\) | \(f_2(59)\) |
Hardy hierarchy | \(H_{\omega^2}(58)\) | \(H_{\omega^2}(59)\) |
Slow-growing hierarchy | \(g_{\omega^{\omega+5}10}(12)\) | \(g_{\omega^{\omega+7}4}(11)\) |
Sources[]
- ↑ Halm, Michael Joseph. neologisms. Archived from the original on 2014-02-19. Retrieved 2018-02-26.
See also[]
beast number · twenty-twos · thirty-threes · forty-fours · fifty-fives · sixty-sixes · seventy-sevens · eighty-eights · ninety-nines
Repunits: twenty-twos · thirty-threes · forty-fours · fifty-fives · sixty-sixes · seventy-sevens · eighty-eights
Googo- series: googoli · googolex · googoc · googoci · googocci · googoccic · googoxem · googolmox · googomump ·
Googoo- series: googool · googoodix
Googgoo- series: googgol · googgool · geegeel · geeggeel · geiggeil · geiggeim
Googolplux series: googolplux · googolpluc · googolplum
Bowers' numbers attempts: Joycian gaggol · Joycian gygol · Joycian gagol · Joyce's tetratri · Joyce's pentatri · Joycian grand tridecal · Joycian dimentri · Joycian dulatri · Joycian trimentri · Joycian decaltrix
Archive André Joyce archive