Compare 9989 vs 9990

Property	9989	9990
Type	semiprime	composite number
Unique factors	2	4
Total factors	2	6
Prime factorization	7¹ × 1427¹	2¹ × 3³ × 5¹ × 37¹
Prime factorization	7 × 1427	2 × 3 × 3 × 3 × 5 × 37
Divisors count	4	32
Divisors	1, 7, 1427, 9989	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
Number of properties	1	0
Semiprimes	2620th
Roman numberals
Base 2	10011100000101₂	10011100000110₂
Base 3	111200222₃	111201000₃
Base 4	2130011₄	2130012₄
Base 5	304424₅	304430₅
Base 6	114125₆	114130₆
Base 7	41060₇	41061₇
Base 8	23405₈	23406₈
Base 9	14628₉	14630₉
Base 10	9989₁₀	9990₁₀
Base 11	7561₁₁	7562₁₁
Base 12	5945₁₂	5946₁₂
Base 13	4715₁₃	4716₁₃
Base 14	38d7₁₄	38d8₁₄
Base 15	2e5e₁₅	2e60₁₅
Base 16	2705₁₆	2706₁₆