Compare 639642 vs 639647

Property	639642	639647
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 3¹ × 17¹ × 6271¹	639647¹
Prime factorization	2 × 3 × 17 × 6271	639647
Divisors count	16	2
Divisors	1, 2, 3, 6, 17, 34, 51, 102, 6271, 12542, 18813, 37626, 106607, 213214, 319821, 639642	1, 639647
Number of properties	0	4
Centered heptagonal primes		87th
Chen primes		20362nd
Isolated primes		40794th
Primes		52049th
Roman numberals
Base 2	10011100001010011010₂	10011100001010011111₂
Base 3	1012111102110₃	1012111102122₃
Base 4	2130022122₄	2130022133₄
Base 5	130432032₅	130432042₅
Base 6	21413150₆	21413155₆
Base 7	5302563₇	5302601₇
Base 8	2341232₈	2341237₈
Base 9	1174373₉	1174378₉
Base 10	639642₁₀	639647₁₀
Base 11	3a7633₁₁	3a7638₁₁
Base 12	26a1b6₁₂	26a1bb₁₂
Base 13	1951b3₁₃	1951b8₁₃
Base 14	12916a₁₄	129171₁₄
Base 15	c97cc₁₅	c97d2₁₅
Base 16	9c29a₁₆	9c29f₁₆