Compare 661986 vs 661987

Property	661986	661987
Type	composite number	prime
Unique factors	5	1
Total factors	7	1
Prime factorization	2¹ × 3³ × 13¹ × 23¹ × 41¹	661987¹
Prime factorization	2 × 3 × 3 × 3 × 13 × 23 × 41	661987
Divisors count	64	2
Divisors	1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 41, 46, 54, 69, 78, 82, 117, 123, 138, 207, 234, 246, 299, 351, 369, 414, 533, 598, 621, 702, 738, 897, 943, 1066, 1107, 1242, 1599, 1794, 1886, 2214, 2691, 2829, 3198, 4797, 5382, 5658, 8073, 8487, 9594, 12259, 14391, 16146, 16974, 24518, 25461, 28782, 36777, 50922, 73554, 110331, 220662, 330993, 661986	1, 661987
Number of properties	0	5
Additive primes		20970th
Chen primes		21009th
Isolated primes		42127th
Primes		53716th
Sexy primes (1st member)		11599th
Roman numberals
Base 2	10100001100111100010₂	10100001100111100011₂
Base 3	1020122002000₃	1020122002001₃
Base 4	2201213202₄	2201213203₄
Base 5	132140421₅	132140422₅
Base 6	22104430₆	22104431₆
Base 7	5424663₇	5424664₇
Base 8	2414742₈	2414743₈
Base 9	1218060₉	1218061₉
Base 10	661986₁₀	661987₁₀
Base 11	4123a6₁₁	4123a7₁₁
Base 12	27b116₁₂	27b117₁₂
Base 13	1a2410₁₃	1a2411₁₃
Base 14	13336a₁₄	13336b₁₄
Base 15	d1226₁₅	d1227₁₅
Base 16	a19e2₁₆	a19e3₁₆