Compare 639731 vs 640009

Property	639731	640009
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639731¹	640009¹
Prime factorization	639731	640009
Divisors count	2	2
Divisors	1, 639731	1, 640009
Number of properties	4	6
Additive primes	20343rd	20351st
Chen primes	20367th	20378th
Happy primes		7413th
Isolated primes	40800th
Lucky primes		5978th
Primes	52059th	52076th
Twin primes (2nd member)		5632nd
Roman numberals
Base 2	10011100001011110011₂	10011100010000001001₂
Base 3	1012111112202₃	1012111221001₃
Base 4	2130023303₄	2130100021₄
Base 5	130432411₅	130440014₅
Base 6	21413415₆	21415001₆
Base 7	5303051₇	5303626₇
Base 8	2341363₈	2342011₈
Base 9	1174482₉	1174831₉
Base 10	639731₁₀	640009₁₀
Base 11	3a7704₁₁	3a7937₁₁
Base 12	26a26b₁₂	26a461₁₂
Base 13	195251₁₃	195406₁₃
Base 14	1291d1₁₄	12934d₁₄
Base 15	c983b₁₅	c9974₁₅
Base 16	9c2f3₁₆	9c409₁₆