Compare 1919 vs 1920

Property	1919	1920
Type	semiprime	composite number
Unique factors	2	3
Total factors	2	9
Prime factorization	19¹ × 101¹	2⁷ × 3¹ × 5¹
Prime factorization	19 × 101	2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5
Divisors count	4	32
Divisors	1, 19, 101, 1919	1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920
Number of properties	1	0
Semiprimes	551st
Roman numberals	MCMXIX	MCMXX
Base 2	11101111111₂	11110000000₂
Base 3	2122002₃	2122010₃
Base 4	131333₄	132000₄
Base 5	30134₅	30140₅
Base 6	12515₆	12520₆
Base 7	5411₇	5412₇
Base 8	3577₈	3600₈
Base 9	2562₉	2563₉
Base 10	1919₁₀	1920₁₀
Base 11	1495₁₁	1496₁₁
Base 12	113b₁₂	1140₁₂
Base 13	b48₁₃	b49₁₃
Base 14	9b1₁₄	9b2₁₄
Base 15	87e₁₅	880₁₅
Base 16	77f₁₆	780₁₆