Compare 201809 vs 201997

Property	201809	201997
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	201809¹	201997¹
Prime factorization	201809	201997
Divisors count	2	2
Divisors	1, 201809	1, 201997
Number of properties	5	4
Chen primes	7580th
Cousin primes (1st member)		2155th
Harmonic primes	6807th
Isolated primes	13787th	13803rd
Primes	18128th	18148th
Pythagorean primes	9049th	9060th
Roman numberals
Base 2	110001010001010001₂	110001010100001101₂
Base 3	101020211102₃	101021002101₃
Base 4	301101101₄	301110031₄
Base 5	22424214₅	22430442₅
Base 6	4154145₆	4155101₆
Base 7	1500236₇	1500625₇
Base 8	612121₈	612415₈
Base 9	336742₉	337071₉
Base 10	201809₁₀	201997₁₀
Base 11	128693₁₁	128844₁₁
Base 12	98955₁₂	98a91₁₂
Base 13	70b1a₁₃	70c33₁₃
Base 14	5378d₁₄	53885₁₄
Base 15	3ebde₁₅	3ecb7₁₅
Base 16	31451₁₆	3150d₁₆