Compare 661201 vs 661209

Property	661201	661209
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	661201¹	3¹ × 220403¹
Prime factorization	661201	3 × 220403
Divisors count	2	4
Divisors	1, 661201	1, 3, 220403, 661209
Number of properties	2	1
Isolated primes	42082nd
Primes	53665th
Semiprimes		141479th
Roman numberals
Base 2	10100001011011010001₂	10100001011011011001₂
Base 3	1020120222221₃	1020121000020₃
Base 4	2201123101₄	2201123121₄
Base 5	132124301₅	132124314₅
Base 6	22101041₆	22101053₆
Base 7	5422462₇	5422503₇
Base 8	2413321₈	2413331₈
Base 9	1216887₉	1217006₉
Base 10	661201₁₀	661209₁₀
Base 11	411852₁₁	41185a₁₁
Base 12	27a781₁₂	27a789₁₂
Base 13	1a1c58₁₃	1a1c63₁₃
Base 14	132d69₁₄	132d73₁₄
Base 15	d0da1₁₅	d0da9₁₅
Base 16	a16d1₁₆	a16d9₁₆