128849 (number)
128,849 (one hundred twentyeight thousand eight hundred fortynine) is an odd sixdigits composite number following 128848 and preceding 128850. In scientific notation, it is written as 1.28849 × 10^{5}. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 108,576 positive integers (up to 128849) that are relatively prime to 128849.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 32
 Digital Root 5
Name
Short name  128 thousand 849 

Full name  one hundred twentyeight thousand eight hundred fortynine 
Notation
Scientific notation  1.28849 × 10^{5} 

Engineering notation  128.849 × 10^{3} 
Prime Factorization of 128849
Prime Factorization 7 × 79 × 233
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  128849  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  1  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 128,849 is 7 × 79 × 233. Since it has a total of 3 prime factors, 128,849 is a composite number.
Divisors of 128849
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  149760  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  20911  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  18720  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  358.95542898806  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.8829594017094  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 128,849 can be divided by 8 positive divisors (out of which 0 are even, and 8 are odd). The sum of these divisors (counting 128,849) is 149,760, the average is 18,720.
Other Arithmetic Functions (n = 128849)
φ(n)  Euler Totient  108576  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  9048  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 12031  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 108,576 positive integers (less than 128,849) that are coprime with 128,849. And there are approximately 12,031 prime numbers less than or equal to 128,849.
Divisibility of 128849
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  4  5  0  1  5 
The number 128,849 is divisible by 7.
Classification of 128849
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
 Sphenic
Base conversion (128849)
Base  System  Value 

2  Binary  11111011101010001 
3  Ternary  20112202012 
4  Quaternary  133131101 
5  Quinary  13110344 
6  Senary  2432305 
8  Octal  373521 
10  Decimal  128849 
12  Duodecimal  62695 
16  Hexadecimal  1f751 
20  Vigesimal  g229 
36  Base36  2rf5 
Basic calculations (n = 128849)
Multiplication
n×yn×2  257698 

n×3  386547 
n×4  515396 
n×5  644245 
Division
n÷yn÷2  64424.500 

n÷3  42949.666 
n÷4  32212.250 
n÷5  25769.800 
Exponentiation
n^{y}n^{2}  16602064801 

n^{3}  2139159447544049 
n^{4}  275628555656603169601 
n^{5}  35514463767797661799919249 
Nth Root
^{y}√n^{2}√n  358.95542898806 

^{3}√n  50.50802081534 
^{4}√n  18.946119100968 
^{5}√n  10.520011400615 
128849 as geometric shapes
Circle
Radius = nDiameter  257698 

Circumference  809582.14364478 
Area  52156924813.243 
Sphere
Radius = nVolume  8.9604901403488E+15 

Surface area  208627699252.97 
Circumference  809582.14364478 
Square
Length = nPerimeter  515396 

Area  16602064801 
Diagonal  182220.00329821 
Cube
Length = nSurface area  99612388806 

Volume  2139159447544049 
Space diagonal  223173.01450444 
Equilateral Triangle
Length = nPerimeter  386547 

Area  7188904936.4707 
Altitude  111586.50725222 
Triangular Pyramid
Length = nSurface area  28755619745.883 

Volume  2.5210235856628E+14 
Height  105204.76795596 
Cryptographic Hash Functions
md5  fef35f3a30a2485ac369f1e6b3caa937 

sha1  d68dfe225211bcb84793b7c249bc5e53dc8a9beb 
sha256  ccf54f99b0c74acde4a0e27ad722dfc0afe801595e9babca1d76802a48df5abc 
sha512  8326fc279026c2916b3905203a97fa9aaf3b949f249a80dcef7894b849077530cf82d18f1ab130d05680eddc007df7c02b9182117bffd3e6e86caa0b87ca9538 
ripemd160  6f8336abd05b4c2fdb153040f75ade8aa1b602cc 