Compare 216551 vs 216556

Property	216551	216556
Type	prime	composite number
Unique factors	1	2
Total factors	1	3
Prime factorization	216551¹	2² × 54139¹
Prime factorization	216551	2 × 2 × 54139
Divisors count	2	6
Divisors	1, 216551	1, 2, 4, 54139, 108278, 216556
Number of properties	5	0
Chen primes	8056th
Good primes	1059th
Primes	19325th
Twin primes (1st member)	2295th
Ulam primes	1384th
Roman numberals
Base 2	110100110111100111₂	110100110111101100₂
Base 3	102000001102₃	102000001121₃
Base 4	310313213₄	310313230₄
Base 5	23412201₅	23412211₅
Base 6	4350315₆	4350324₆
Base 7	1561226₇	1561234₇
Base 8	646747₈	646754₈
Base 9	360042₉	360047₉
Base 10	216551₁₀	216556₁₀
Base 11	138775₁₁	13877a₁₁
Base 12	a539b₁₂	a53a4₁₂
Base 13	7774a₁₃	77752₁₃
Base 14	58cbd₁₄	58cc4₁₄
Base 15	4426b₁₅	44271₁₅
Base 16	34de7₁₆	34dec₁₆