Compare 639983 vs 639991

Property	639983	639991
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	639983¹	11¹ × 73¹ × 797¹
Prime factorization	639983	11 × 73 × 797
Divisors count	2	8
Divisors	1, 639983	1, 11, 73, 797, 803, 8767, 58181, 639991
Number of properties	4	0
Chen primes	20376th
Happy primes	7412th
Isolated primes	40812th
Primes	52073rd
Roman numberals
Base 2	10011100001111101111₂	10011100001111110111₂
Base 3	1012111220002₃	1012111220101₃
Base 4	2130033233₄	2130033313₄
Base 5	130434413₅	130434431₅
Base 6	21414515₆	21414531₆
Base 7	5303561₇	5303602₇
Base 8	2341757₈	2341767₈
Base 9	1174802₉	1174811₉
Base 10	639983₁₀	639991₁₀
Base 11	3a7913₁₁	3a7920₁₁
Base 12	26a43b₁₂	26a447₁₂
Base 13	1953b6₁₃	1953c1₁₃
Base 14	129331₁₄	129339₁₄
Base 15	c9958₁₅	c9961₁₅
Base 16	9c3ef₁₆	9c3f7₁₆