Compare 201809 vs 201911

Property	201809	201911
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	201809¹	201911¹
Prime factorization	201809	201911
Divisors count	2	2
Divisors	1, 201809	1, 201911
Number of properties	5	4
Chen primes	7580th	7584th
Cousin primes (2nd member)		2153rd
Harmonic primes	6807th
Isolated primes	13787th	13794th
Primes	18128th	18139th
Pythagorean primes	9049th
Roman numberals
Base 2	110001010001010001₂	110001010010110111₂
Base 3	101020211102₃	101020222012₃
Base 4	301101101₄	301102313₄
Base 5	22424214₅	22430121₅
Base 6	4154145₆	4154435₆
Base 7	1500236₇	1500443₇
Base 8	612121₈	612267₈
Base 9	336742₉	336865₉
Base 10	201809₁₀	201911₁₀
Base 11	128693₁₁	128776₁₁
Base 12	98955₁₂	98a1b₁₂
Base 13	70b1a₁₃	70b98₁₃
Base 14	5378d₁₄	53823₁₄
Base 15	3ebde₁₅	3ec5b₁₅
Base 16	31451₁₆	314b7₁₆