Compare 991972 vs 991981

Property	991972	991981
Type	composite number	prime
Unique factors	2	1
Total factors	3	1
Prime factorization	2² × 247993¹	991981¹
Prime factorization	2 × 2 × 247993	991981
Divisors count	6	2
Divisors	1, 2, 4, 247993, 495986, 991972	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	11110010001011100100₂	11110010001011101101₂
Base 3	1212101201201₃	1212101202001₃
Base 4	3302023210₄	3302023231₄
Base 5	223220342₅	223220411₅
Base 6	33132244₆	33132301₆
Base 7	11301022₇	11301034₇
Base 8	3621344₈	3621355₈
Base 9	1771651₉	1771661₉
Base 10	991972₁₀	991981₁₀
Base 11	618313₁₁	618321₁₁
Base 12	3ba084₁₂	3ba091₁₂
Base 13	289687₁₃	289693₁₃
Base 14	1bb712₁₄	1bb71b₁₄
Base 15	148db7₁₅	148dc1₁₅
Base 16	f22e4₁₆	f22ed₁₆