Compare 640669 vs 640687

Property	640669	640687
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640669¹	640687¹
Prime factorization	640669	640687
Divisors count	2	2
Divisors	1, 640669	1, 640687
Number of properties	6	5
Additive primes	20372nd	20373rd
Chen primes	20396th
Cousin primes (1st member)		5637th
Isolated primes		40852nd
Primes	52126th	52127th
Prime triplets (3rd member)	2063rd
Sexy primes (2nd member)	11293rd
Super primes		5330th
Twin primes (2nd member)	5638th
Roman numberals
Base 2	10011100011010011101₂	10011100011010101111₂
Base 3	1012112211111₃	1012112212011₃
Base 4	2130122131₄	2130122233₄
Base 5	131000134₅	131000222₅
Base 6	21422021₆	21422051₆
Base 7	5305561₇	5305615₇
Base 8	2343235₈	2343257₈
Base 9	1175744₉	1175764₉
Base 10	640669₁₀	640687₁₀
Base 11	3a8387₁₁	3a83a3₁₁
Base 12	26a911₁₂	26a927₁₂
Base 13	1957c3₁₃	195808₁₃
Base 14	1296a1₁₄	1296b5₁₄
Base 15	c9c64₁₅	c9c77₁₅
Base 16	9c69d₁₆	9c6af₁₆