Compare 661976 vs 661987

Property	661976	661987
Type	composite number	prime
Unique factors	3	1
Total factors	5	1
Prime factorization	2³ × 7¹ × 11821¹	661987¹
Prime factorization	2 × 2 × 2 × 7 × 11821	661987
Divisors count	16	2
Divisors	1, 2, 4, 7, 8, 14, 28, 56, 11821, 23642, 47284, 82747, 94568, 165494, 330988, 661976	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	10100001100111011000₂	10100001100111100011₂
Base 3	1020122001122₃	1020122002001₃
Base 4	2201213120₄	2201213203₄
Base 5	132140401₅	132140422₅
Base 6	22104412₆	22104431₆
Base 7	5424650₇	5424664₇
Base 8	2414730₈	2414743₈
Base 9	1218048₉	1218061₉
Base 10	661976₁₀	661987₁₀
Base 11	412397₁₁	4123a7₁₁
Base 12	27b108₁₂	27b117₁₂
Base 13	1a2403₁₃	1a2411₁₃
Base 14	133360₁₄	13336b₁₄
Base 15	d121b₁₅	d1227₁₅
Base 16	a19d8₁₆	a19e3₁₆