Compare 221572 vs 221581

Property	221572	221581
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	2² × 13¹ × 4261¹	221581¹
Prime factorization	2 × 2 × 13 × 4261	221581
Divisors count	12	2
Divisors	1, 2, 4, 13, 26, 52, 4261, 8522, 17044, 55393, 110786, 221572	1, 221581
Number of properties	0	5
Additive primes		7991st
Isolated primes		15059th
Primes		19742nd
Pythagorean primes		9851st
Sexy primes (1st member)		4669th
Roman numberals
Base 2	110110000110000100₂	110110000110001101₂
Base 3	102020221101₃	102020221201₃
Base 4	312012010₄	312012031₄
Base 5	24042242₅	24042311₅
Base 6	4425444₆	4425501₆
Base 7	1611661₇	1612003₇
Base 8	660604₈	660615₈
Base 9	366841₉	366851₉
Base 10	221572₁₀	221581₁₀
Base 11	14151a₁₁	141528₁₁
Base 12	a8284₁₂	a8291₁₂
Base 13	79b10₁₃	79b19₁₃
Base 14	5aa68₁₄	5aa73₁₄
Base 15	459b7₁₅	459c1₁₅
Base 16	36184₁₆	3618d₁₆