Compare 221985 vs 221987

Property	221985	221987
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	3² × 5¹ × 4933¹	221987¹
Prime factorization	3 × 3 × 5 × 4933	221987
Divisors count	12	2
Divisors	1, 3, 5, 9, 15, 45, 4933, 14799, 24665, 44397, 73995, 221985	1, 221987
Number of properties	0	6
Additive primes		8005th
Chen primes		8240th
Happy primes		3002nd
Harmonic primes		7425th
Primes		19774th
Twin primes (1st member)		2347th
Roman numberals
Base 2	110110001100100001₂	110110001100100011₂
Base 3	102021111200₃	102021111202₃
Base 4	312030201₄	312030203₄
Base 5	24100420₅	24100422₅
Base 6	4431413₆	4431415₆
Base 7	1613121₇	1613123₇
Base 8	661441₈	661443₈
Base 9	367450₉	367452₉
Base 10	221985₁₀	221987₁₀
Base 11	141865₁₁	141867₁₁
Base 12	a8569₁₂	a856b₁₂
Base 13	7a06a₁₃	7a06c₁₃
Base 14	5ac81₁₄	5ac83₁₄
Base 15	45b90₁₅	45b92₁₅
Base 16	36321₁₆	36323₁₆