Compare 667990 vs 667991

Property	667990	667991
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 5¹ × 67¹ × 997¹	667991¹
Prime factorization	2 × 5 × 67 × 997	667991
Divisors count	16	2
Divisors	1, 2, 5, 10, 67, 134, 335, 670, 997, 1994, 4985, 9970, 66799, 133598, 333995, 667990	1, 667991
Number of properties	0	4
Chen primes		21176th
Cousin primes (2nd member)		5841st
Isolated primes		42471st
Primes		54168th
Roman numberals
Base 2	10100011000101010110₂	10100011000101010111₂
Base 3	1020221022101₃	1020221022102₃
Base 4	2203011112₄	2203011113₄
Base 5	132333430₅	132333431₅
Base 6	22152314₆	22152315₆
Base 7	5451331₇	5451332₇
Base 8	2430526₈	2430527₈
Base 9	1227271₉	1227272₉
Base 10	667990₁₀	667991₁₀
Base 11	416964₁₁	416965₁₁
Base 12	28269a₁₂	28269b₁₂
Base 13	1a507b₁₃	1a507c₁₃
Base 14	135618₁₄	135619₁₄
Base 15	d2dca₁₅	d2dcb₁₅
Base 16	a3156₁₆	a3157₁₆