Compare 661420 vs 661421

Property	661420	661421
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	2² × 5¹ × 33071¹	661421¹
Prime factorization	2 × 2 × 5 × 33071	661421
Divisors count	12	2
Divisors	1, 2, 4, 5, 10, 20, 33071, 66142, 132284, 165355, 330710, 661420	1, 661421
Number of properties	0	5
Cousin primes (2nd member)		5786th
Happy primes		7610th
Isolated primes		42096th
Primes		53679th
Sophie germain primes		5457th
Roman numberals
Base 2	10100001011110101100₂	10100001011110101101₂
Base 3	1020121022001₃	1020121022002₃
Base 4	2201132230₄	2201132231₄
Base 5	132131140₅	132131141₅
Base 6	22102044₆	22102045₆
Base 7	5423224₇	5423225₇
Base 8	2413654₈	2413655₈
Base 9	1217261₉	1217262₉
Base 10	661420₁₀	661421₁₀
Base 11	411a31₁₁	411a32₁₁
Base 12	27a924₁₂	27a925₁₂
Base 13	1a2096₁₃	1a2097₁₃
Base 14	133084₁₄	133085₁₄
Base 15	d0e9a₁₅	d0e9b₁₅
Base 16	a17ac₁₆	a17ad₁₆