Compare 201816 vs 201821

Property	201816	201821
Type	composite number	prime
Unique factors	3	1
Total factors	6	1
Prime factorization	2³ × 3² × 2803¹	201821¹
Prime factorization	2 × 2 × 2 × 3 × 3 × 2803	201821
Divisors count	24	2
Divisors	1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 2803, 5606, 8409, 11212, 16818, 22424, 25227, 33636, 50454, 67272, 100908, 201816	1, 201821
Number of properties	0	10
Chen primes		7581st
Long primes		6796th
Primes		18129th
Prime quadruplets (1st member)		54th
Prime quintuplet 2s (1st member)		15th
Prime triplets (1st member)		844th
Pythagorean primes		9050th
Sexy primes (1st member)		4326th
Sexy prime triplets (1st member)		870th
Twin primes (1st member)		2172nd
Roman numberals
Base 2	110001010001011000₂	110001010001011101₂
Base 3	101020211200₃	101020211212₃
Base 4	301101120₄	301101131₄
Base 5	22424231₅	22424241₅
Base 6	4154200₆	4154205₆
Base 7	1500246₇	1500254₇
Base 8	612130₈	612135₈
Base 9	336750₉	336755₉
Base 10	201816₁₀	201821₁₀
Base 11	12869a₁₁	1286a4₁₁
Base 12	98960₁₂	98965₁₂
Base 13	70b24₁₃	70b29₁₃
Base 14	53796₁₄	5379b₁₄
Base 15	3ebe6₁₅	3ebeb₁₅
Base 16	31458₁₆	3145d₁₆