Compare 21980 vs 21986

Property	21980	21986
Type	composite number	semiprime
Unique factors	4	2
Total factors	5	2
Prime factorization	2² × 5¹ × 7¹ × 157¹	2¹ × 10993¹
Prime factorization	2 × 2 × 5 × 7 × 157	2 × 10993
Divisors count	24	4
Divisors	1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 10990, 21980	1, 2, 10993, 21986
Number of properties	0	1
Semiprimes		5551st
Roman numberals
Base 2	101010111011100₂	101010111100010₂
Base 3	1010011002₃	1010011022₃
Base 4	11113130₄	11113202₄
Base 5	1200410₅	1200421₅
Base 6	245432₆	245442₆
Base 7	121040₇	121046₇
Base 8	52734₈	52742₈
Base 9	33132₉	33138₉
Base 10	21980₁₀	21986₁₀
Base 11	15572₁₁	15578₁₁
Base 12	10878₁₂	10882₁₂
Base 13	a00a₁₃	a013₁₃
Base 14	8020₁₄	8026₁₄
Base 15	67a5₁₅	67ab₁₅
Base 16	55dc₁₆	55e2₁₆