Compare 199901 vs 199909

Property	199901	199909
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	13¹ × 15377¹	199909¹
Prime factorization	13 × 15377	199909
Divisors count	4	2
Divisors	1, 13, 15377, 199901	1, 199909
Number of properties	1	4
Additive primes		7220th
Isolated primes		13661st
Primes		17978th
Pythagorean primes		8974th
Semiprimes	45206th
Roman numberals
Base 2	110000110011011101₂	110000110011100101₂
Base 3	101011012202₃	101011020001₃
Base 4	300303131₄	300303211₄
Base 5	22344101₅	22344114₅
Base 6	4141245₆	4141301₆
Base 7	1461542₇	1461553₇
Base 8	606335₈	606345₈
Base 9	334182₉	334201₉
Base 10	199901₁₀	199909₁₀
Base 11	127209₁₁	127216₁₁
Base 12	97825₁₂	97831₁₂
Base 13	6ccb0₁₃	6ccb8₁₃
Base 14	52bc9₁₄	52bd3₁₄
Base 15	3e36b₁₅	3e374₁₅
Base 16	30cdd₁₆	30ce5₁₆