Compare 81280 vs 81281

Property	81280	81281
Type	composite number	prime
Unique factors	3	1
Total factors	9	1
Prime factorization	2⁷ × 5¹ × 127¹	81281¹
Prime factorization	2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 127	81281
Divisors count	32	2
Divisors	1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 2032, 2540, 4064, 5080, 8128, 10160, 16256, 20320, 40640, 81280	1, 81281
Number of properties	0	7
Centered decagonal primes		61st
Chen primes		3597th
Harmonic primes		3002nd
Primes		7953rd
Pythagorean primes		3963rd
Sophie germain primes		988th
Twin primes (1st member)		1025th
Roman numberals
Base 2	10011110110000000₂	10011110110000001₂
Base 3	11010111101₃	11010111102₃
Base 4	103312000₄	103312001₄
Base 5	10100110₅	10100111₅
Base 6	1424144₆	1424145₆
Base 7	455653₇	455654₇
Base 8	236600₈	236601₈
Base 9	133441₉	133442₉
Base 10	81280₁₀	81281₁₀
Base 11	56081₁₁	56082₁₁
Base 12	3b054₁₂	3b055₁₂
Base 13	2acc4₁₃	2acc5₁₃
Base 14	2189a₁₄	2189b₁₄
Base 15	1913a₁₅	1913b₁₅
Base 16	13d80₁₆	13d81₁₆