Compare 661609 vs 661621

Property	661609	661621
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	13¹ × 50893¹	661621¹
Prime factorization	13 × 50893	661621
Divisors count	4	2
Divisors	1, 13, 50893, 661609	1, 661621
Number of properties	1	3
Isolated primes		42108th
Primes		53693rd
Semiprimes	141566th
Super primes		5472nd
Roman numberals
Base 2	10100001100001101001₂	10100001100001110101₂
Base 3	1020121120001₃	1020121120111₃
Base 4	2201201221₄	2201201311₄
Base 5	132132414₅	132132441₅
Base 6	22103001₆	22103021₆
Base 7	5423614₇	5423632₇
Base 8	2414151₈	2414165₈
Base 9	1217501₉	1217514₉
Base 10	661609₁₀	661621₁₀
Base 11	412093₁₁	4120a4₁₁
Base 12	27aa61₁₂	27aa71₁₂
Base 13	1a21b0₁₃	1a21bc₁₃
Base 14	13317b₁₄	133189₁₄
Base 15	d1074₁₅	d1081₁₅
Base 16	a1869₁₆	a1875₁₆