Compare 201809 vs 201919

Property	201809	201919
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	201809¹	201919¹
Prime factorization	201809	201919
Divisors count	2	2
Divisors	1, 201809	1, 201919
Number of properties	5	5
Chen primes	7580th	7585th
Cousin primes (1st member)		2154th
Harmonic primes	6807th	6809th
Isolated primes	13787th	13795th
Primes	18128th	18140th
Pythagorean primes	9049th
Roman numberals
Base 2	110001010001010001₂	110001010010111111₂
Base 3	101020211102₃	101020222111₃
Base 4	301101101₄	301102333₄
Base 5	22424214₅	22430134₅
Base 6	4154145₆	4154451₆
Base 7	1500236₇	1500454₇
Base 8	612121₈	612277₈
Base 9	336742₉	336874₉
Base 10	201809₁₀	201919₁₀
Base 11	128693₁₁	128783₁₁
Base 12	98955₁₂	98a27₁₂
Base 13	70b1a₁₃	70ba3₁₃
Base 14	5378d₁₄	5382b₁₄
Base 15	3ebde₁₅	3ec64₁₅
Base 16	31451₁₆	314bf₁₆