Compare 166561 vs 166572

Property	166561	166572
Type	prime	composite number
Unique factors	1	4
Total factors	1	6
Prime factorization	166561¹	2² × 3² × 7¹ × 661¹
Prime factorization	166561	2 × 2 × 3 × 3 × 7 × 661
Divisors count	2	36
Divisors	1, 166561	1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 661, 1322, 1983, 2644, 3966, 4627, 5949, 7932, 9254, 11898, 13881, 18508, 23796, 27762, 41643, 55524, 83286, 166572
Number of properties	6	0
Good primes	904th
Isolated primes	11504th
Primes	15213th
Pythagorean primes	7587th
Quartan primes	46th
Sexy primes (1st member)	3680th
Roman numberals
Base 2	101000101010100001₂	101000101010101100₂
Base 3	22110110221₃	22110111100₃
Base 4	220222201₄	220222230₄
Base 5	20312221₅	20312242₅
Base 6	3323041₆	3323100₆
Base 7	1262413₇	1262430₇
Base 8	505241₈	505254₈
Base 9	273427₉	273440₉
Base 10	166561₁₀	166572₁₀
Base 11	10415a₁₁	10416a₁₁
Base 12	80481₁₂	80490₁₂
Base 13	5aa75₁₃	5aa83₁₃
Base 14	449b3₁₄	449c0₁₄
Base 15	34541₁₅	3454c₁₅
Base 16	28aa1₁₆	28aac₁₆