Compare 1228 vs 1231

Property	1228	1231
Type	composite number	prime
Unique factors	2	1
Total factors	3	1
Prime factorization	2² × 307¹	1231¹
Prime factorization	2 × 2 × 307	1231
Divisors count	6	2
Divisors	1, 2, 4, 307, 614, 1228	1, 1231
Number of properties	0	6
Additive primes		108th
Emirps		56th
Lucky primes		52nd
Primes		202nd
Sexy primes (1st member)		88th
Twin primes (2nd member)		42nd
Roman numberals	MCCXXVIII	MCCXXXI
Base 2	10011001100₂	10011001111₂
Base 3	1200111₃	1200121₃
Base 4	103030₄	103033₄
Base 5	14403₅	14411₅
Base 6	5404₆	5411₆
Base 7	3403₇	3406₇
Base 8	2314₈	2317₈
Base 9	1614₉	1617₉
Base 10	1228₁₀	1231₁₀
Base 11	a17₁₁	a1a₁₁
Base 12	864₁₂	867₁₂
Base 13	736₁₃	739₁₃
Base 14	63a₁₄	63d₁₄
Base 15	56d₁₅	571₁₅
Base 16	4cc₁₆	4cf₁₆