Compare 1890 vs 1891

Property	1890	1891
Type	composite number	semiprime
Unique factors	4	2
Total factors	6	2
Prime factorization	2¹ × 3³ × 5¹ × 7¹	31¹ × 61¹
Prime factorization	2 × 3 × 3 × 3 × 5 × 7	31 × 61
Divisors count	32	4
Divisors	1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890	1, 31, 61, 1891
Number of properties	0	1
Semiprimes		542nd
Roman numberals	MDCCCXC	MDCCCXCI
Base 2	11101100010₂	11101100011₂
Base 3	2121000₃	2121001₃
Base 4	131202₄	131203₄
Base 5	30030₅	30031₅
Base 6	12430₆	12431₆
Base 7	5340₇	5341₇
Base 8	3542₈	3543₈
Base 9	2530₉	2531₉
Base 10	1890₁₀	1891₁₀
Base 11	1469₁₁	146a₁₁
Base 12	1116₁₂	1117₁₂
Base 13	b25₁₃	b26₁₃
Base 14	990₁₄	991₁₄
Base 15	860₁₅	861₁₅
Base 16	762₁₆	763₁₆