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This page contains Roman numeral-related numbers.

## List of Roman numeral-related numbers

• 201 is an odd lucky number. Its Roman numeral (CCI) is used in Googocci.
• Its prime factorization is 3 × 67.
• 209 is a natural number following 208 and preceding 210. Its prime factorization is 11 × 19.
• 299 is an odd unlucky number. Its unofficial Roman numeral (CCIC) is used in Googoccic. The official Roman numeral is CCXCIX.
• 990 is the 44th triangular number. Its unofficial Roman numeral (XM) is used in Googoxem. Here, an “e” has been inserted for euphonical reasons. The official Roman numeral is CMXC.
• Its prime factorization is 2 × 32 × 5 × 11.
• 1,002 is the 22nd partition number. Its Roman numeral (MII) is used in Fibonamij. Here, the second “i” has been spelled “j” for euphonical reasons.
• Its prime factorization is 2 × 3 × 167.
• 1,099 is a natural number following 1,098 and preceding 1,100. Its prime factorization is 7 × 157.
• Its unofficial Roman numeral (MIC) is used in googocciplemic. The official Roman numeral is MXCIX.
• Sbiis Saibian gives unique names for the first 1099 counting numbers.
• 1,444 is the smallest positive number with pandigital Roman numeral, namely MCDXLIV.
• 1,666 is the largest number with pandigital Roman numeral without redundant digits, namely MDCLXVI.
• The 3,999 undisputed Roman numerals use a total of 2,400 characters with negative value.
• 3,888 is the number with the longest undisputed Roman numeral, namely MMMDCCCLXXXVIII.
• 3,999 is the largest number with undisputed Roman numeral, namely MMMCMXCIX.
• Its prime factorization is 3 × 31 × 43.
• 7,473 is the largest number whose Roman numeral (namely, MMMMMMMCDLXXIII (or $$\bar{\text{V}} \text{MMCDLXXIII}$$ )) has been used in literature (namely, by Voltaire).
• The 3,999 undisputed Roman numerals use a total of 30,000 characters.
• The 7,473 Roman numerals used in literature use a total of 68,934 characters.

## Approximations of these numbers

For 30,000:

Notation Lower bound Upper bound
Scientific notation $$3\times10^4$$
Arrow notation $$31\uparrow3$$ $$2\uparrow15$$
Steinhaus-Moser Notation 5 6
Copy notation 2 3
Chained arrow notation $$31\rightarrow3$$ $$2\rightarrow15$$
Taro's multivariable Ackermann function A(3,12) A(3,13)
Pound-Star Notation #*(21)*3 #*(22)*3
PlantStar's Debut Notation  
BEAF {31,3} {2,15}
Hyper-E notation 3E4
Bashicu matrix system (0) (0)
Hyperfactorial array notation 7! 8!
Bird's array notation {31,3} {2,15}
Strong array notation s(31,3) s(2,15)
Fast-growing hierarchy $$f_{2}(11)$$ $$f_{2}(12)$$
Hardy hierarchy $$H_{\omega^2}(11)$$ $$H_{\omega^2}(12)$$
Slow-growing hierarchy $$g_{\omega^4\times 3}(10)$$

## Sources

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