Compare 16981 vs 16990

Property	16981	16990
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	16981¹	2¹ × 5¹ × 1699¹
Prime factorization	16981	2 × 5 × 1699
Divisors count	2	8
Divisors	1, 16981	1, 2, 5, 10, 1699, 3398, 8495, 16990
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	100001001011110₂
Base 3	212021221₃	212022021₃
Base 4	10021111₄	10021132₄
Base 5	1020411₅	1020430₅
Base 6	210341₆	210354₆
Base 7	100336₇	100351₇
Base 8	41125₈	41136₈
Base 9	25257₉	25267₉
Base 10	16981₁₀	16990₁₀
Base 11	11838₁₁	11846₁₁
Base 12	99b1₁₂	99ba₁₂
Base 13	7963₁₃	796c₁₃
Base 14	628d₁₄	6298₁₄
Base 15	5071₁₅	507a₁₅
Base 16	4255₁₆	425e₁₆