Compare 16981 vs 16989

Property	16981	16989
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	16981¹	3¹ × 7¹ × 809¹
Prime factorization	16981	3 × 7 × 809
Divisors count	2	8
Divisors	1, 16981	1, 3, 7, 21, 809, 2427, 5663, 16989
Number of properties	7	0
Long primes	757th
Lucky primes	319th
Primes	1958th
Pythagorean primes	966th
Sexy primes (1st member)	610th
Sexy prime triplets (1st member)	171st
Twin primes (2nd member)	297th
Roman numberals
Base 2	100001001010101₂	100001001011101₂
Base 3	212021221₃	212022020₃
Base 4	10021111₄	10021131₄
Base 5	1020411₅	1020424₅
Base 6	210341₆	210353₆
Base 7	100336₇	100350₇
Base 8	41125₈	41135₈
Base 9	25257₉	25266₉
Base 10	16981₁₀	16989₁₀
Base 11	11838₁₁	11845₁₁
Base 12	99b1₁₂	99b9₁₂
Base 13	7963₁₃	796b₁₃
Base 14	628d₁₄	6297₁₄
Base 15	5071₁₅	5079₁₅
Base 16	4255₁₆	425d₁₆