Compare 640421 vs 640669

Property	640421	640669
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640421¹	640669¹
Prime factorization	640421	640669
Divisors count	2	2
Divisors	1, 640421	1, 640669
Number of properties	3	6
Additive primes	20365th	20372nd
Chen primes		20396th
Isolated primes	40838th
Primes	52109th	52126th
Prime triplets (3rd member)		2063rd
Sexy primes (2nd member)		11293rd
Twin primes (2nd member)		5638th
Roman numberals
Base 2	10011100010110100101₂	10011100011010011101₂
Base 3	1012112111022₃	1012112211111₃
Base 4	2130112211₄	2130122131₄
Base 5	130443141₅	131000134₅
Base 6	21420525₆	21422021₆
Base 7	5305055₇	5305561₇
Base 8	2342645₈	2343235₈
Base 9	1175438₉	1175744₉
Base 10	640421₁₀	640669₁₀
Base 11	3a8181₁₁	3a8387₁₁
Base 12	26a745₁₂	26a911₁₂
Base 13	195662₁₃	1957c3₁₃
Base 14	129565₁₄	1296a1₁₄
Base 15	c9b4b₁₅	c9c64₁₅
Base 16	9c5a5₁₆	9c69d₁₆