Compare 640009 vs 640049

Property	640009	640049
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640009¹	640049¹
Prime factorization	640009	640049
Divisors count	2	2
Divisors	1, 640009	1, 640049
Number of properties	6	5
Additive primes	20351st	20354th
Chen primes	20378th
Happy primes	7413th
Isolated primes		40818th
Lucky primes	5978th
Primes	52076th	52081st
Sexy primes (2nd member)		11285th
Super primes		5327th
Twin primes (2nd member)	5632nd
Roman numberals
Base 2	10011100010000001001₂	10011100010000110001₂
Base 3	1012111221001₃	1012111222112₃
Base 4	2130100021₄	2130100301₄
Base 5	130440014₅	130440144₅
Base 6	21415001₆	21415105₆
Base 7	5303626₇	5304014₇
Base 8	2342011₈	2342061₈
Base 9	1174831₉	1174875₉
Base 10	640009₁₀	640049₁₀
Base 11	3a7937₁₁	3a7973₁₁
Base 12	26a461₁₂	26a495₁₂
Base 13	195406₁₃	195437₁₃
Base 14	12934d₁₄	12937b₁₄
Base 15	c9974₁₅	c999e₁₅
Base 16	9c409₁₆	9c431₁₆