text: ## 21051
  
  21,051 (twenty-one thousand fifty-one) is an odd five-digits composite number following 21050 and preceding 21052. In scientific notation, it is written as 2.1051 × 104. The sum of its digits is 9. It has a total of 3 prime factors and 6 positive divisors. There are 14,028 positive integers (up to 21051) that are relatively prime to 21051.
  
  ## Basic properties
  
  • Is Prime? No
  • Number parity Odd
  • Number length 5
  • Sum of Digits 9
  • Digital Root 9
  
  ## Name
  
  Short name 21 thousand 51 twenty-one thousand fifty-one
  
  ## Notation
  
  Scientific notation 2.1051 × 104 21.051 × 103
  
  ## Prime Factorization of 21051
  
  Prime Factorization 32 × 2339
  
  Composite number
  Distinct Factors Total Factors Radical ω(n) 2 Total number of distinct prime factors Ω(n) 3 Total number of prime factors rad(n) 7017 Product of the distinct prime numbers λ(n) -1 Returns the parity of Ω(n), such that λ(n) = (-1)Ω(n) μ(n) 0 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 21,051 is 32 × 2339. Since it has a total of 3 prime factors, 21,051 is a composite number.
  
  ## Divisors of 21051
  
  1, 3, 9, 2339, 7017, 21051
  
  6 divisors
  
   Even divisors 0 6 3 3
  Total Divisors Sum of Divisors Aliquot Sum τ(n) 6 Total number of the positive divisors of n σ(n) 30420 Sum of all the positive divisors of n s(n) 9369 Sum of the proper positive divisors of n A(n) 5070 Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) G(n) 145.09 Returns the nth root of the product of n divisors H(n) 4.15207 Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors
  
  The number 21,051 can be divided by 6 positive divisors (out of which 0 are even, and 6 are odd). The sum of these divisors (counting 21,051) is 30,420, the average is 5,070.
  
  ## Other Arithmetic Functions (n = 21051)
  
  1 φ(n) n
  Euler Totient Carmichael Lambda Prime Pi φ(n) 14028 Total number of positive integers not greater than n that are coprime to n λ(n) 7014 Smallest positive number such that aλ(n) ≡ 1 (mod n) for all a coprime to n π(n) ≈ 2371 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 14,028 positive integers (less than 21,051) that are coprime with 21,051. And there are approximately 2,371 prime numbers less than or equal to 21,051.
  
  ## Divisibility of 21051
  
   m n mod m 2 3 4 5 6 7 8 9 1 0 3 1 3 2 3 0
  
  The number 21,051 is divisible by 3 and 9.
  
  ## Classification of 21051
  
  • Arithmetic
  • Deficient
  
  ### Expressible via specific sums
  
  • Polite
  • Non-hypotenuse
  
  ## Base conversion (21051)
  
  Base System Value
  2 Binary 101001000111011
  3 Ternary 1001212200
  4 Quaternary 11020323
  5 Quinary 1133201
  6 Senary 241243
  8 Octal 51073
  10 Decimal 21051
  12 Duodecimal 10223
  20 Vigesimal 2ccb
  36 Base36 g8r
  
  ## Basic calculations (n = 21051)
  
  ### Multiplication
  
  n×i
   n×2 42102 63153 84204 105255
  
  ### Division
  
  ni
   n⁄2 10525.5 7017 5262.75 4210.2
  
  ### Exponentiation
  
  ni
   n2 443144601 9328636995651 196377137395449201 4133935119311601130251
  
  ### Nth Root
  
  i√n
   2√n 145.09 27.6116 12.0453 7.32242
  
  ## 21051 as geometric shapes
  
  ### Circle
  
   Diameter 42102 132267 1.39218e+09
  
  ### Sphere
  
   Volume 3.90757e+13 5.56872e+09 132267
  
  ### Square
  
  Length = n
   Perimeter 84204 4.43145e+08 29770.6
  
  ### Cube
  
  Length = n
   Surface area 2.65887e+09 9.32864e+12 36461.4
  
  ### Equilateral Triangle
  
  Length = n
   Perimeter 63153 1.91887e+08 18230.7
  
  ### Triangular Pyramid
  
  Length = n
   Surface area 7.67549e+08 1.09939e+12 17188.1
  
  ## Cryptographic Hash Functions
  
  md5 f8531013695084f6fd79ed6d8e24b2d6 885345a658efc00e4a6178cbf2cda387683c43a9 0d423ea809dc1fe554e256f6503a7827313c3bfc177e33f2e15d8fdd496bf42f c89e854e3fcc9375157d4e8d6042065a9bf83cc8dc04efe78603876039afd6bc14b03ea7116215f8faebea9b796b90cf92343eac2c5ea126bda963e43d2b99fb 45c83aad38d150193457b643ec3043be10c500bd