Compare 161921 vs 161930

Property	161921	161930
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	161921¹	2¹ × 5¹ × 16193¹
Prime factorization	161921	2 × 5 × 16193
Divisors count	2	8
Divisors	1, 161921	1, 2, 5, 10, 16193, 32386, 80965, 161930
Number of properties	5	0
Chen primes	6329th
Harmonic primes	5564th
Primes	14844th
Pythagorean primes	7400th
Twin primes (1st member)	1821st
Roman numberals
Base 2	100111100010000001₂	100111100010001010₂
Base 3	22020010002₃	22020010102₃
Base 4	213202001₄	213202022₄
Base 5	20140141₅	20140210₅
Base 6	3245345₆	3245402₆
Base 7	1243034₇	1243046₇
Base 8	474201₈	474212₈
Base 9	266102₉	266112₉
Base 10	161921₁₀	161930₁₀
Base 11	100721₁₁	10072a₁₁
Base 12	79855₁₂	79862₁₂
Base 13	58916₁₃	58922₁₃
Base 14	4301b₁₄	43026₁₄
Base 15	32e9b₁₅	32ea5₁₅
Base 16	27881₁₆	2788a₁₆