Compare 639857 vs 639867

Property	639857	639867
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	639857¹	3¹ × 213289¹
Prime factorization	639857	3 × 213289
Divisors count	2	4
Divisors	1, 639857	1, 3, 213289, 639867
Number of properties	6	1
Chen primes	20372nd
Cousin primes (2nd member)	5629th
Isolated primes	40805th
Primes	52066th
Prime triplets (3rd member)	2062nd
Semiprimes		137114th
Sexy primes (2nd member)	11284th
Roman numberals
Base 2	10011100001101110001₂	10011100001101111011₂
Base 3	1012111201102₃	1012111201210₃
Base 4	2130031301₄	2130031323₄
Base 5	130433412₅	130433432₅
Base 6	21414145₆	21414203₆
Base 7	5303321₇	5303334₇
Base 8	2341561₈	2341573₈
Base 9	1174642₉	1174653₉
Base 10	639857₁₀	639867₁₀
Base 11	3a7809₁₁	3a7818₁₁
Base 12	26a355₁₂	26a363₁₂
Base 13	19531a₁₃	195327₁₃
Base 14	129281₁₄	12928b₁₄
Base 15	c98c2₁₅	c98cc₁₅
Base 16	9c371₁₆	9c37b₁₆