Compare 670981 vs 670991

Property	670981	670991
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	673¹ × 997¹	670991¹
Prime factorization	673 × 997	670991
Divisors count	4	2
Divisors	1, 673, 997, 670981	1, 670991
Number of properties	1	5
Chen primes		21254th
Cousin primes (2nd member)		5864th
Isolated primes		42651st
Primes		54384th
Semiprimes	143496th
Sophie germain primes		5525th
Roman numberals
Base 2	10100011110100000101₂	10100011110100001111₂
Base 3	1021002102011₃	1021002102112₃
Base 4	2203310011₄	2203310033₄
Base 5	132432411₅	132432431₅
Base 6	22214221₆	22214235₆
Base 7	5463133₇	5463146₇
Base 8	2436405₈	2436417₈
Base 9	1232364₉	1232375₉
Base 10	670981₁₀	670991₁₀
Base 11	419133₁₁	419142₁₁
Base 12	284371₁₂	28437b₁₂
Base 13	1a653c₁₃	1a6549₁₃
Base 14	136753₁₄	13675d₁₄
Base 15	d3c21₁₅	d3c2b₁₅
Base 16	a3d05₁₆	a3d0f₁₆