Compare 640259 vs 640667

Property	640259	640667
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640259¹	640667¹
Prime factorization	640259	640667
Divisors count	2	2
Divisors	1, 640259	1, 640667
Number of properties	4	6
Additive primes		20371st
Chen primes	20389th	20395th
Cousin primes (2nd member)		5636th
Primes	52099th	52125th
Prime triplets (2nd member)		2063rd
Sophie germain primes	5308th
Twin primes (1st member)	5636th	5638th
Roman numberals
Base 2	10011100010100000011₂	10011100011010011011₂
Base 3	1012112021022₃	1012112211102₃
Base 4	2130110003₄	2130122123₄
Base 5	130442014₅	131000132₅
Base 6	21420055₆	21422015₆
Base 7	5304434₇	5305556₇
Base 8	2342403₈	2343233₈
Base 9	1175238₉	1175742₉
Base 10	640259₁₀	640667₁₀
Base 11	3a8044₁₁	3a8385₁₁
Base 12	26a62b₁₂	26a90b₁₂
Base 13	195569₁₃	1957c1₁₃
Base 14	12948b₁₄	12969d₁₄
Base 15	c9a8e₁₅	c9c62₁₅
Base 16	9c503₁₆	9c69b₁₆