Compare 639491 vs 639647

Property	639491	639647
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639491¹	639647¹
Prime factorization	639491	639647
Divisors count	2	2
Divisors	1, 639491	1, 639647
Number of properties	7	4
Centered heptagonal primes		87th
Chen primes	20357th	20362nd
Cousin primes (2nd member)	5627th
Good primes	1983rd
Isolated primes		40794th
Primes	52035th	52049th
Prime triplets (2nd member)	2060th
Sophie germain primes	5301st
Twin primes (1st member)	5627th
Roman numberals
Base 2	10011100001000000011₂	10011100001010011111₂
Base 3	1012111012212₃	1012111102122₃
Base 4	2130020003₄	2130022133₄
Base 5	130430431₅	130432042₅
Base 6	21412335₆	21413155₆
Base 7	5302256₇	5302601₇
Base 8	2341003₈	2341237₈
Base 9	1174185₉	1174378₉
Base 10	639491₁₀	639647₁₀
Base 11	3a7506₁₁	3a7638₁₁
Base 12	26a0ab₁₂	26a1bb₁₂
Base 13	1950c8₁₃	1951b8₁₃
Base 14	12909d₁₄	129171₁₄
Base 15	c972b₁₅	c97d2₁₅
Base 16	9c203₁₆	9c29f₁₆