213728 (number)
213,728 (two hundred thirteen thousand seven hundred twentyeight) is an even sixdigits composite number following 213727 and preceding 213729. In scientific notation, it is written as 2.13728 × 10^{5}. The sum of its digits is 23. It has a total of 6 prime factors and 12 positive divisors. There are 106,848 positive integers (up to 213728) that are relatively prime to 213728.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 6
 Sum of Digits 23
 Digital Root 5
Name
Short name  213 thousand 728 

Full name  two hundred thirteen thousand seven hundred twentyeight 
Notation
Scientific notation  2.13728 × 10^{5} 

Engineering notation  213.728 × 10^{3} 
Prime Factorization of 213728
Prime Factorization 2^{5} × 6679
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  6  Total number of prime factors 
rad(n)  Radical  13358  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  0  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 213,728 is 2^{5} × 6679. Since it has a total of 6 prime factors, 213,728 is a composite number.
Divisors of 213728
12 divisors
τ(n)  Total Divisors  12  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  420840  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  207112  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  35070  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  462.30725713534  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.0943256344454  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 213,728 can be divided by 12 positive divisors (out of which 10 are even, and 2 are odd). The sum of these divisors (counting 213,728) is 420,840, the average is 35,070.
Other Arithmetic Functions (n = 213728)
φ(n)  Euler Totient  106848  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  53424  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 19053  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 106,848 positive integers (less than 213,728) that are coprime with 213,728. And there are approximately 19,053 prime numbers less than or equal to 213,728.
Divisibility of 213728
m  2  3  4  5  6  7  8  9 

n mod m  0  2  0  3  2  4  0  5 
The number 213,728 is divisible by 2, 4 and 8.
Classification of 213728
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
Other numbers
 Frugal
Base conversion (213728)
Base  System  Value 

2  Binary  110100001011100000 
3  Ternary  101212011212 
4  Quaternary  310023200 
5  Quinary  23314403 
6  Senary  4325252 
8  Octal  641340 
10  Decimal  213728 
12  Duodecimal  a3828 
16  Hexadecimal  342e0 
20  Vigesimal  16e68 
36  Base36  4kww 
Basic calculations (n = 213728)
Multiplication
n×yn×2  427456 

n×3  641184 
n×4  854912 
n×5  1068640 
Division
n÷yn÷2  106864.000 

n÷3  71242.666 
n÷4  53432.000 
n÷5  42745.600 
Exponentiation
n^{y}n^{2}  45679657984 

n^{3}  9763021941604352 
n^{4}  2086631153535214944256 
n^{5}  445971503182774419605946368 
Nth Root
^{y}√n^{2}√n  462.30725713534 

^{3}√n  59.788887694066 
^{4}√n  21.501331520056 
^{5}√n  11.640517400208 
213728 as geometric shapes
Circle
Radius = nDiameter  427456 

Circumference  1342892.6293329 
Area  143506877941.03 
Sphere
Radius = nVolume  4.0895250678107E+16 

Surface area  574027511764.11 
Circumference  1342892.6293329 
Square
Length = nPerimeter  854912 

Area  45679657984 
Diagonal  302257.03625888 
Cube
Length = nSurface area  274077947904 

Volume  9763021941604352 
Space diagonal  370187.75500008 
Equilateral Triangle
Length = nPerimeter  641184 

Area  19779872125.164 
Altitude  185093.87750004 
Triangular Pyramid
Length = nSurface area  79119488500.657 

Volume  1.1505831699636E+15 
Height  174508.18124852 
Cryptographic Hash Functions
md5  8d7a9e6ffd625898b418ed49f38801d7 

sha1  b7fce63c90a200a354050b3c02076f566c3794dc 
sha256  d5467c69d12bd935aeb2b7234de6138aade488462d2ab9a5752f43820f77eab1 
sha512  403844edee34be15f773ad33f4238bcc1272db845830473c73ea51909480c3840f436fe52615eea874c76e3c5f88a80f2a7864563a7060adedd3a71a1e09978d 
ripemd160  fd1ca3d7ffbe44dfb302d00a2c38fbc02a836ff8 