Compare 639849 vs 639857

Property	639849	639857
Type	composite number	prime
Unique factors	3	1
Total factors	3	1
Prime factorization	3¹ × 7¹ × 30469¹	639857¹
Prime factorization	3 × 7 × 30469	639857
Divisors count	8	2
Divisors	1, 3, 7, 21, 30469, 91407, 213283, 639849	1, 639857
Number of properties	0	6
Chen primes		20372nd
Cousin primes (2nd member)		5629th
Isolated primes		40805th
Primes		52066th
Prime triplets (3rd member)		2062nd
Sexy primes (2nd member)		11284th
Roman numberals
Base 2	10011100001101101001₂	10011100001101110001₂
Base 3	1012111201010₃	1012111201102₃
Base 4	2130031221₄	2130031301₄
Base 5	130433344₅	130433412₅
Base 6	21414133₆	21414145₆
Base 7	5303310₇	5303321₇
Base 8	2341551₈	2341561₈
Base 9	1174633₉	1174642₉
Base 10	639849₁₀	639857₁₀
Base 11	3a7801₁₁	3a7809₁₁
Base 12	26a349₁₂	26a355₁₂
Base 13	195312₁₃	19531a₁₃
Base 14	129277₁₄	129281₁₄
Base 15	c98b9₁₅	c98c2₁₅
Base 16	9c369₁₆	9c371₁₆