Compare 81661 vs 81663

Property	81661	81663
Type	semiprime	composite number
Unique factors	2	3
Total factors	2	3
Prime factorization	127¹ × 643¹	3¹ × 163¹ × 167¹
Prime factorization	127 × 643	3 × 163 × 167
Divisors count	4	8
Divisors	1, 127, 643, 81661	1, 3, 163, 167, 489, 501, 27221, 81663
Number of properties	1	0
Semiprimes	19279th
Roman numberals
Base 2	10011111011111101₂	10011111011111111₂
Base 3	11011000111₃	11011000120₃
Base 4	103323331₄	103323333₄
Base 5	10103121₅	10103123₅
Base 6	1430021₆	1430023₆
Base 7	460036₇	460041₇
Base 8	237375₈	237377₈
Base 9	134014₉	134016₉
Base 10	81661₁₀	81663₁₀
Base 11	56398₁₁	5639a₁₁
Base 12	3b311₁₂	3b313₁₂
Base 13	2b228₁₃	2b22a₁₃
Base 14	21a8d₁₄	21a91₁₄
Base 15	192e1₁₅	192e3₁₅
Base 16	13efd₁₆	13eff₁₆