Compare 1979 vs 1980

Property	1979	1980
Type	prime	composite number
Unique factors	1	4
Total factors	1	6
Prime factorization	1979¹	2² × 3² × 5¹ × 11¹
Prime factorization	1979	2 × 2 × 3 × 3 × 5 × 11
Divisors count	2	36
Divisors	1, 1979	1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980
Number of properties	6	0
Chen primes	184th
Emirps	96th
Isolated primes	180th
Long primes	116th
Primes	299th
Sexy primes (2nd member)	126th
Roman numberals	MCMLXXIX	MCMLXXX
Base 2	11110111011₂	11110111100₂
Base 3	2201022₃	2201100₃
Base 4	132323₄	132330₄
Base 5	30404₅	30410₅
Base 6	13055₆	13100₆
Base 7	5525₇	5526₇
Base 8	3673₈	3674₈
Base 9	2638₉	2640₉
Base 10	1979₁₀	1980₁₀
Base 11	153a₁₁	1540₁₁
Base 12	118b₁₂	1190₁₂
Base 13	b93₁₃	b94₁₃
Base 14	a15₁₄	a16₁₄
Base 15	8be₁₅	8c0₁₅
Base 16	7bb₁₆	7bc₁₆