286

286 (two hundred eighty-six) is an even three-digits composite number following 285 and preceding 287. In scientific notation, it is written as 2.86 × 102. The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors. There are 120 positive integers (up to 286) that are relatively prime to 286.

Basic properties

• Is Prime? No
• Number parity Even
• Number length 3
• Sum of Digits 16
• Digital Root 7

Name

Short name 286 two hundred eighty-six

Notation

Scientific notation 2.86 × 102 286 × 100

Prime Factorization of 286

Prime Factorization 2 × 11 × 13

Composite number
Distinct Factors Total Factors Radical ω(n) 3 Total number of distinct prime factors Ω(n) 3 Total number of prime factors rad(n) 286 Product of the distinct prime numbers λ(n) -1 Returns the parity of Ω(n), such that λ(n) = (-1)Ω(n) μ(n) -1 Returns: 1, if n has an even number of prime factors (and is square free) −1, if n has an odd number of prime factors (and is square free) 0, if n has a squared prime factor Λ(n) 0 Returns log(p) if n is a power pk of any prime p (for any k >= 1), else returns 0

The prime factorization of 286 is 2 × 11 × 13. Since it has a total of 3 prime factors, 286 is a composite number.

Divisors of 286

1, 2, 11, 13, 22, 26, 143, 286

8 divisors

 Even divisors 4 4 2 2
Total Divisors Sum of Divisors Aliquot Sum τ(n) 8 Total number of the positive divisors of n σ(n) 504 Sum of all the positive divisors of n s(n) 218 Sum of the proper positive divisors of n A(n) 63 Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) G(n) 16.9115 Returns the nth root of the product of n divisors H(n) 4.53968 Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 286 can be divided by 8 positive divisors (out of which 4 are even, and 4 are odd). The sum of these divisors (counting 286) is 504, the average is 63.

Other Arithmetic Functions (n = 286)

1 φ(n) n
Euler Totient Carmichael Lambda Prime Pi φ(n) 120 Total number of positive integers not greater than n that are coprime to n λ(n) 60 Smallest positive number such that aλ(n) ≡ 1 (mod n) for all a coprime to n π(n) ≈ 61 Total number of primes less than or equal to n r2(n) 0 The number of ways n can be represented as the sum of 2 squares

There are 120 positive integers (less than 286) that are coprime with 286. And there are approximately 61 prime numbers less than or equal to 286.

Divisibility of 286

 m n mod m 2 3 4 5 6 7 8 9 0 1 2 1 4 6 6 7

The number 286 is divisible by 2.

• Arithmetic
• Deficient

• Polite

• Heptagonal

• Square Free

• Sphenic

Base conversion (286)

Base System Value
2 Binary 100011110
3 Ternary 101121
4 Quaternary 10132
5 Quinary 2121
6 Senary 1154
8 Octal 436
10 Decimal 286
12 Duodecimal 1ba
20 Vigesimal e6
36 Base36 7y

Basic calculations (n = 286)

Multiplication

n×i
 n×2 572 858 1144 1430

Division

ni
 n⁄2 143 95.333 71.5 57.2

Exponentiation

ni
 n2 81796 23393656 6690585616 1913507486176

Nth Root

i√n
 2√n 16.9115 6.58853 4.11236 3.09937

286 as geometric shapes

Circle

 Diameter 572 1796.99 256970

Sphere

 Volume 9.79911e+07 1.02788e+06 1796.99

Square

Length = n
 Perimeter 1144 81796 404.465

Cube

Length = n
 Surface area 490776 2.33937e+07 495.367

Equilateral Triangle

Length = n
 Perimeter 858 35418.7 247.683

Triangular Pyramid

Length = n
 Surface area 141675 2.75697e+06 233.518

Cryptographic Hash Functions

md5 16a5cdae362b8d27a1d8f8c7b78b4330 7edab1f00ca6b31e11f7eb2e61787ed747420923 00328ce57bbc14b33bd6695bc8eb32cdf2fb5f3a7d89ec14a42825e15d39df60 5085434c76cfd5687ea141f067922d9ba2e5690e712b0686678f2c61a90306edad1038c73d84b0bdc93159c2eedd508abc790c156b83b1255cb4b034da8bb09a 4396440cf331ee7dbb4c8c04b421dab69832501f
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