Compare 669887 vs 669947

Property	669887	669947
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	669887¹	669947¹
Prime factorization	669887	669947
Divisors count	2	2
Divisors	1, 669887	1, 669947
Number of properties	3	6
Additive primes		21201st
Chen primes	21223rd	21225th
Cousin primes (2nd member)		5858th
Isolated primes	42579th	42586th
Primes	54300th	54307th
Safe primes		3137th
Roman numberals
Base 2	10100011100010111111₂	10100011100011111011₂
Base 3	1021000220122₃	1021000222212₃
Base 4	2203202333₄	2203203323₄
Base 5	132414022₅	132414242₅
Base 6	22205155₆	22205335₆
Base 7	5460011₇	5460125₇
Base 8	2434277₈	2434373₈
Base 9	1230818₉	1230885₉
Base 10	669887₁₀	669947₁₀
Base 11	418329₁₁	418383₁₁
Base 12	2837bb₁₂	28384b₁₂
Base 13	1a5baa₁₃	1a5c25₁₃
Base 14	1361b1₁₄	136215₁₄
Base 15	d3742₁₅	d3782₁₅
Base 16	a38bf₁₆	a38fb₁₆