Compare 215981 vs 215990

Property	215981	215990
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	215981¹	2¹ × 5¹ × 21599¹
Prime factorization	215981	2 × 5 × 21599
Divisors count	2	8
Divisors	1, 215981	1, 2, 5, 10, 21599, 43198, 107995, 215990
Number of properties	6	0
Chen primes	8043rd
Happy primes	2928th
Long primes	7217th
Primes	19286th
Pythagorean primes	9622nd
Twin primes (1st member)	2292nd
Roman numberals
Base 2	110100101110101101₂	110100101110110110₂
Base 3	101222021022₃	101222021122₃
Base 4	310232231₄	310232312₄
Base 5	23402411₅	23402430₅
Base 6	4343525₆	4343542₆
Base 7	1556453₇	1556465₇
Base 8	645655₈	645666₈
Base 9	358238₉	358248₉
Base 10	215981₁₀	215990₁₀
Base 11	1382a7₁₁	138305₁₁
Base 12	a4ba5₁₂	a4bb2₁₂
Base 13	773cc₁₃	77408₁₃
Base 14	589d3₁₄	589dc₁₄
Base 15	43edb₁₅	43ee5₁₅
Base 16	34bad₁₆	34bb6₁₆