Compare 639491 vs 642869

Property	639491	642869
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639491¹	642869¹
Prime factorization	639491	642869
Divisors count	2	2
Divisors	1, 639491	1, 642869
Number of properties	7	4
Chen primes	20357th	20449th
Cousin primes (2nd member)	5627th
Good primes	1983rd	1992nd
Primes	52035th	52278th
Prime triplets (2nd member)	2060th
Sophie germain primes	5301st
Twin primes (1st member)	5627th	5655th
Roman numberals
Base 2	10011100001000000011₂	10011100111100110101₂
Base 3	1012111012212₃	1012122211222₃
Base 4	2130020003₄	2130330311₄
Base 5	130430431₅	131032434₅
Base 6	21412335₆	21440125₆
Base 7	5302256₇	5315153₇
Base 8	2341003₈	2347465₈
Base 9	1174185₉	1178758₉
Base 10	639491₁₀	642869₁₀
Base 11	3a7506₁₁	3a9aa7₁₁
Base 12	26a0ab₁₂	270045₁₂
Base 13	1950c8₁₃	1967c6₁₃
Base 14	12909d₁₄	12a3d3₁₄
Base 15	c972b₁₅	ca72e₁₅
Base 16	9c203₁₆	9cf35₁₆