Compare 661889 vs 661890

Property	661889	661890
Type	prime	composite number
Unique factors	1	4
Total factors	1	4
Prime factorization	661889¹	2¹ × 3¹ × 5¹ × 22063¹
Prime factorization	661889	2 × 3 × 5 × 22063
Divisors count	2	16
Divisors	1, 661889	1, 2, 3, 5, 6, 10, 15, 30, 22063, 44126, 66189, 110315, 132378, 220630, 330945, 661890
Number of properties	6	0
Chen primes	21006th
Isolated primes	42121st
Primes	53708th
Sexy primes (2nd member)	11598th
Sexy prime triplets (3rd member)	2116th
Sophie germain primes	5460th
Roman numberals
Base 2	10100001100110000001₂	10100001100110000010₂
Base 3	1020121221102₃	1020121221110₃
Base 4	2201212001₄	2201212002₄
Base 5	132140024₅	132140030₅
Base 6	22104145₆	22104150₆
Base 7	5424464₇	5424465₇
Base 8	2414601₈	2414602₈
Base 9	1217842₉	1217843₉
Base 10	661889₁₀	661890₁₀
Base 11	412318₁₁	412319₁₁
Base 12	27b055₁₂	27b056₁₂
Base 13	1a2367₁₃	1a2368₁₃
Base 14	1332db₁₄	1332dc₁₄
Base 15	d11ae₁₅	d11b0₁₅
Base 16	a1981₁₆	a1982₁₆