Compare 201809 vs 201889

Property	201809	201889
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	201809¹	201889¹
Prime factorization	201809	201889
Divisors count	2	2
Divisors	1, 201809	1, 201889
Number of properties	5	5
Chen primes	7580th
Cousin primes (1st member)		2152nd
Harmonic primes	6807th
Isolated primes	13787th	13791st
Lucky primes		2329th
Primes	18128th	18136th
Pythagorean primes	9049th	9054th
Roman numberals
Base 2	110001010001010001₂	110001010010100001₂
Base 3	101020211102₃	101020221101₃
Base 4	301101101₄	301102201₄
Base 5	22424214₅	22430024₅
Base 6	4154145₆	4154401₆
Base 7	1500236₇	1500412₇
Base 8	612121₈	612241₈
Base 9	336742₉	336841₉
Base 10	201809₁₀	201889₁₀
Base 11	128693₁₁	128756₁₁
Base 12	98955₁₂	98a01₁₂
Base 13	70b1a₁₃	70b7c₁₃
Base 14	5378d₁₄	53809₁₄
Base 15	3ebde₁₅	3ec44₁₅
Base 16	31451₁₆	314a1₁₆