Compare 991980 vs 991981

Property	991980	991981
Type	composite number	prime
Unique factors	5	1
Total factors	8	1
Prime factorization	2² × 3³ × 5¹ × 11¹ × 167¹	991981¹
Prime factorization	2 × 2 × 3 × 3 × 3 × 5 × 11 × 167	991981
Divisors count	96	2
Divisors	1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 167, 180, 198, 220, 270, 297, 330, 334, 396, 495, 501, 540, 594, 660, 668, 835, 990, 1002, 1188, 1485, 1503, 1670, 1837, 1980, 2004, 2505, 2970, 3006, 3340, 3674, 4509, 5010, 5511, 5940, 6012, 7348, 7515, 9018, 9185, 10020, 11022, 15030, 16533, 18036, 18370, 22044, 22545, 27555, 30060, 33066, 36740, 45090, 49599, 55110, 66132, 82665, 90180, 99198, 110220, 165330, 198396, 247995, 330660, 495990, 991980	1, 991981
Number of properties	0	6
Additive primes		29905th
Chen primes		29751st
Emirps		10998th
Primes		77925th
Sexy primes (1st member)		16280th
Twin primes (2nd member)		8113th
Roman numberals
Base 2	11110010001011101100₂	11110010001011101101₂
Base 3	1212101202000₃	1212101202001₃
Base 4	3302023230₄	3302023231₄
Base 5	223220410₅	223220411₅
Base 6	33132300₆	33132301₆
Base 7	11301033₇	11301034₇
Base 8	3621354₈	3621355₈
Base 9	1771660₉	1771661₉
Base 10	991980₁₀	991981₁₀
Base 11	618320₁₁	618321₁₁
Base 12	3ba090₁₂	3ba091₁₂
Base 13	289692₁₃	289693₁₃
Base 14	1bb71a₁₄	1bb71b₁₄
Base 15	148dc0₁₅	148dc1₁₅
Base 16	f22ec₁₆	f22ed₁₆