Compare 639911 vs 640631

Property	639911	640631
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639911¹	640631¹
Prime factorization	639911	640631
Divisors count	2	2
Divisors	1, 639911	1, 640631
Number of properties	6	3
Additive primes	20346th
Chen primes	20373rd
Cousin primes (2nd member)	5630th
Isolated primes	40807th	40849th
Primes	52068th	52122nd
Sophie germain primes	5306th	5310th
Roman numberals
Base 2	10011100001110100111₂	10011100011001110111₂
Base 3	1012111210102₃	1012112210002₃
Base 4	2130032213₄	2130121313₄
Base 5	130434121₅	131000011₅
Base 6	21414315₆	21421515₆
Base 7	5303426₇	5305505₇
Base 8	2341647₈	2343167₈
Base 9	1174712₉	1175702₉
Base 10	639911₁₀	640631₁₀
Base 11	3a7858₁₁	3a8352₁₁
Base 12	26a39b₁₂	26a89b₁₂
Base 13	19535c₁₃	195794₁₃
Base 14	1292bd₁₄	129675₁₄
Base 15	c990b₁₅	c9c3b₁₅
Base 16	9c3a7₁₆	9c677₁₆