Compare 9991 vs 10000

Property	9991	10000
Type	semiprime	composite number
Unique factors	2	2
Total factors	2	8
Prime factorization	97¹ × 103¹	2⁴ × 5⁴
Prime factorization	97 × 103	2 × 2 × 2 × 2 × 5 × 5 × 5 × 5
Divisors count	4	25
Divisors	1, 97, 103, 9991	1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000
Number of properties	1	0
Semiprimes	2621st
Roman numberals
Base 2	10011100000111₂	10011100010000₂
Base 3	111201001₃	111201101₃
Base 4	2130013₄	2130100₄
Base 5	304431₅	310000₅
Base 6	114131₆	114144₆
Base 7	41062₇	41104₇
Base 8	23407₈	23420₈
Base 9	14631₉	14641₉
Base 10	9991₁₀	10000₁₀
Base 11	7563₁₁	7571₁₁
Base 12	5947₁₂	5954₁₂
Base 13	4717₁₃	4723₁₃
Base 14	38d9₁₄	3904₁₄
Base 15	2e61₁₅	2e6a₁₅
Base 16	2707₁₆	2710₁₆