Compare 9990 vs 9991

Property	9990	9991
Type	composite number	semiprime
Unique factors	4	2
Total factors	6	2
Prime factorization	2¹ × 3³ × 5¹ × 37¹	97¹ × 103¹
Prime factorization	2 × 3 × 3 × 3 × 5 × 37	97 × 103
Divisors count	32	4
Divisors	1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 3330, 4995, 9990	1, 97, 103, 9991
Number of properties	0	1
Semiprimes		2621st
Roman numberals
Base 2	10011100000110₂	10011100000111₂
Base 3	111201000₃	111201001₃
Base 4	2130012₄	2130013₄
Base 5	304430₅	304431₅
Base 6	114130₆	114131₆
Base 7	41061₇	41062₇
Base 8	23406₈	23407₈
Base 9	14630₉	14631₉
Base 10	9990₁₀	9991₁₀
Base 11	7562₁₁	7563₁₁
Base 12	5946₁₂	5947₁₂
Base 13	4716₁₃	4717₁₃
Base 14	38d8₁₄	38d9₁₄
Base 15	2e60₁₅	2e61₁₅
Base 16	2706₁₆	2707₁₆