Compare 639949 vs 639955

Property	639949	639955
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	639949¹	5¹ × 149¹ × 859¹
Prime factorization	639949	5 × 149 × 859
Divisors count	2	8
Divisors	1, 639949	1, 5, 149, 745, 859, 4295, 127991, 639955
Number of properties	3	0
Isolated primes	40810th
Primes	52071st
Ulam primes	3816th
Roman numberals
Base 2	10011100001111001101₂	10011100001111010011₂
Base 3	1012111211211₃	1012111212001₃
Base 4	2130033031₄	2130033103₄
Base 5	130434244₅	130434310₅
Base 6	21414421₆	21414431₆
Base 7	5303512₇	5303521₇
Base 8	2341715₈	2341723₈
Base 9	1174754₉	1174761₉
Base 10	639949₁₀	639955₁₀
Base 11	3a7892₁₁	3a7898₁₁
Base 12	26a411₁₂	26a417₁₂
Base 13	19538b₁₃	195394₁₃
Base 14	129309₁₄	129311₁₄
Base 15	c9934₁₅	c993a₁₅
Base 16	9c3cd₁₆	9c3d3₁₆