Compare 18979 vs 18991

Property	18979	18991
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	18979¹	7¹ × 2713¹
Prime factorization	18979	7 × 2713
Divisors count	2	4
Divisors	1, 18979	1, 7, 2713, 18991
Number of properties	5	1
Isolated primes	1505th
Long primes	826th
Lucky primes	351st
Primes	2158th
Semiprimes		4846th
Sexy primes (2nd member)	660th
Roman numberals
Base 2	100101000100011₂	100101000101111₂
Base 3	222000221₃	222001101₃
Base 4	10220203₄	10220233₄
Base 5	1101404₅	1101431₅
Base 6	223511₆	223531₆
Base 7	106222₇	106240₇
Base 8	45043₈	45057₈
Base 9	28027₉	28041₉
Base 10	18979₁₀	18991₁₀
Base 11	13294₁₁	132a5₁₁
Base 12	ab97₁₂	aba7₁₂
Base 13	883c₁₃	884b₁₃
Base 14	6cb9₁₄	6cc7₁₄
Base 15	5954₁₅	5961₁₅
Base 16	4a23₁₆	4a2f₁₆