Compare 51981 vs 51991

Property	51981	51991
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	3¹ × 17327¹	51991¹
Prime factorization	3 × 17327	51991
Divisors count	4	2
Divisors	1, 3, 17327, 51981	1, 51991
Number of properties	1	2
Isolated primes		3864th
Primes		5319th
Semiprimes	12557th
Roman numberals
Base 2	1100101100001101₂	1100101100010111₂
Base 3	2122022020₃	2122022121₃
Base 4	30230031₄	30230113₄
Base 5	3130411₅	3130431₅
Base 6	1040353₆	1040411₆
Base 7	304356₇	304402₇
Base 8	145415₈	145427₈
Base 9	78266₉	78277₉
Base 10	51981₁₀	51991₁₀
Base 11	36066₁₁	36075₁₁
Base 12	260b9₁₂	26107₁₂
Base 13	1a877₁₃	1a884₁₃
Base 14	14d2d₁₄	14d39₁₄
Base 15	10606₁₅	10611₁₅
Base 16	cb0d₁₆	cb17₁₆