Compare 663881 vs 663887

Property	663881	663887
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	663881¹	7¹ × 94841¹
Prime factorization	663881	7 × 94841
Divisors count	2	4
Divisors	1, 663881	1, 7, 94841, 663887
Number of properties	3	1
Chen primes	21064th
Isolated primes	42229th
Primes	53856th
Semiprimes		142045th
Roman numberals
Base 2	10100010000101001001₂	10100010000101001111₂
Base 3	1020201200012₃	1020201200102₃
Base 4	2202011021₄	2202011033₄
Base 5	132221011₅	132221022₅
Base 6	22121305₆	22121315₆
Base 7	5433341₇	5433350₇
Base 8	2420511₈	2420517₈
Base 9	1221605₉	1221612₉
Base 10	663881₁₀	663887₁₀
Base 11	413869₁₁	413874₁₁
Base 12	280235₁₂	28023b₁₂
Base 13	1a323a₁₃	1a3243₁₃
Base 14	133d21₁₄	133d27₁₄
Base 15	d1a8b₁₅	d1a92₁₅
Base 16	a2149₁₆	a214f₁₆