Compare 640009 vs 640043

Property	640009	640043
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640009¹	640043¹
Prime factorization	640009	640043
Divisors count	2	2
Divisors	1, 640009	1, 640043
Number of properties	6	5
Additive primes	20351st	20353rd
Chen primes	20378th
Cousin primes (2nd member)		5632nd
Happy primes	7413th
Isolated primes		40817th
Lucky primes	5978th
Primes	52076th	52080th
Sexy primes (1st member)		11285th
Twin primes (2nd member)	5632nd
Roman numberals
Base 2	10011100010000001001₂	10011100010000101011₂
Base 3	1012111221001₃	1012111222022₃
Base 4	2130100021₄	2130100223₄
Base 5	130440014₅	130440133₅
Base 6	21415001₆	21415055₆
Base 7	5303626₇	5304005₇
Base 8	2342011₈	2342053₈
Base 9	1174831₉	1174868₉
Base 10	640009₁₀	640043₁₀
Base 11	3a7937₁₁	3a7968₁₁
Base 12	26a461₁₂	26a48b₁₂
Base 13	195406₁₃	195431₁₃
Base 14	12934d₁₄	129375₁₄
Base 15	c9974₁₅	c9998₁₅
Base 16	9c409₁₆	9c42b₁₆