Compare 1021 vs 1028

Property	1021	1028
Type	prime	composite number
Unique factors	1	2
Total factors	1	3
Prime factorization	1021¹	2² × 257¹
Prime factorization	1021	2 × 2 × 257
Divisors count	2	6
Divisors	1, 1021	1, 2, 4, 257, 514, 1028
Number of properties	8	0
Emirps	38th
Harmonic primes	61st
Long primes	62nd
Lucky primes	45th
Primes	172nd
Pythagorean primes	83rd
Solinas primes	46th
Twin primes (2nd member)	36th
Roman numberals	MXXI	MXXVIII
Base 2	1111111101₂	10000000100₂
Base 3	1101211₃	1102002₃
Base 4	33331₄	100010₄
Base 5	13041₅	13103₅
Base 6	4421₆	4432₆
Base 7	2656₇	2666₇
Base 8	1775₈	2004₈
Base 9	1354₉	1362₉
Base 10	1021₁₀	1028₁₀
Base 11	849₁₁	855₁₁
Base 12	711₁₂	718₁₂
Base 13	607₁₃	611₁₃
Base 14	52d₁₄	536₁₄
Base 15	481₁₅	488₁₅
Base 16	3fd₁₆	404₁₆