Compare 661993 vs 661994

Property	661993	661994
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	661993¹	2¹ × 330997¹
Prime factorization	661993	2 × 330997
Divisors count	2	4
Divisors	1, 661993	1, 2, 330997, 661994
Number of properties	5	1
Isolated primes	42128th
Lucky primes	6152nd
Primes	53717th
Semiprimes		141650th
Sexy primes (2nd member)	11599th
Super primes	5474th
Roman numberals
Base 2	10100001100111101001₂	10100001100111101010₂
Base 3	1020122002021₃	1020122002022₃
Base 4	2201213221₄	2201213222₄
Base 5	132140433₅	132140434₅
Base 6	22104441₆	22104442₆
Base 7	5425003₇	5425004₇
Base 8	2414751₈	2414752₈
Base 9	1218067₉	1218068₉
Base 10	661993₁₀	661994₁₀
Base 11	412402₁₁	412403₁₁
Base 12	27b121₁₂	27b122₁₂
Base 13	1a2417₁₃	1a2418₁₃
Base 14	133373₁₄	133374₁₄
Base 15	d122d₁₅	d122e₁₅
Base 16	a19e9₁₆	a19ea₁₆