66655 (number)
66,655 (sixtysix thousand six hundred fiftyfive) is an odd fivedigits composite number following 66654 and preceding 66656. In scientific notation, it is written as 6.6655 × 10^{4}. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 53,320 positive integers (up to 66655) that are relatively prime to 66655.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 5
 Sum of Digits 28
 Digital Root 1
Name
Short name  66 thousand 655 

Full name  sixtysix thousand six hundred fiftyfive 
Notation
Scientific notation  6.6655 × 10^{4} 

Engineering notation  66.655 × 10^{3} 
Prime Factorization of 66655
Prime Factorization 5 × 13331
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  2  Total number of prime factors 
rad(n)  Radical  66655  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 66,655 is 5 × 13331. Since it has a total of 2 prime factors, 66,655 is a composite number.
Divisors of 66655
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  79992  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  13337  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  19998  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  258.1762963558  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  3.3330833083308  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 66,655 can be divided by 4 positive divisors (out of which 0 are even, and 4 are odd). The sum of these divisors (counting 66,655) is 79,992, the average is 19,998.
Other Arithmetic Functions (n = 66655)
φ(n)  Euler Totient  53320  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  26660  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 6643  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 53,320 positive integers (less than 66,655) that are coprime with 66,655. And there are approximately 6,643 prime numbers less than or equal to 66,655.
Divisibility of 66655
m  2  3  4  5  6  7  8  9 

n mod m  1  1  3  0  1  1  7  1 
The number 66,655 is divisible by 5.
Classification of 66655
By Arithmetic functions
 Arithmetic
 Semiprime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
Base conversion (66655)
Base  System  Value 

2  Binary  10000010001011111 
3  Ternary  10101102201 
4  Quaternary  100101133 
5  Quinary  4113110 
6  Senary  1232331 
8  Octal  202137 
10  Decimal  66655 
12  Duodecimal  326a7 
16  Hexadecimal  1045f 
20  Vigesimal  86cf 
36  Base36  1ffj 
Basic calculations (n = 66655)
Multiplication
n×yn×2  133310 

n×3  199965 
n×4  266620 
n×5  333275 
Division
n÷yn÷2  33327.500 

n÷3  22218.333 
n÷4  16663.750 
n÷5  13331.000 
Exponentiation
n^{y}n^{2}  4442889025 

n^{3}  296140767961375 
n^{4}  19739262888465450625 
n^{5}  1315720567830664611409375 
Nth Root
^{y}√n^{2}√n  258.1762963558 

^{3}√n  40.545647865057 
^{4}√n  16.067865332887 
^{5}√n  9.2207563544542 
66655 as geometric shapes
Circle
Radius = nDiameter  133310 

Circumference  418805.71665006 
Area  13957747521.655 
Sphere
Radius = nVolume  1.2404715480745E+15 

Surface area  55830990086.619 
Circumference  418805.71665006 
Square
Length = nPerimeter  266620 

Area  4442889025 
Diagonal  94264.404999979 
Cube
Length = nSurface area  26657334150 

Volume  296140767961375 
Space diagonal  115449.8465785 
Equilateral Triangle
Length = nPerimeter  199965 

Area  1923827380.9225 
Altitude  57724.923289252 
Triangular Pyramid
Length = nSurface area  7695309523.6902 

Volume  34900524201880 
Height  54423.579601738 
Cryptographic Hash Functions
md5  e8fc932634a585f7e097be1beaec69a9 

sha1  b74c38ca44db2084d19d2aa2375d443c0312f7e5 
sha256  9baf59615eb9f91890a17d6d6a376c3183b7783f4a11f41ea26ce2a4ade706ce 
sha512  3c8fcdda92e9eeaf26da797d14a5a72235b1725c65c13e2e6b0e6312b5efa54c2ec23f0f80c58a0454c19a3ac30639c92a499c98b3b6c00fd36e71890d40b273 
ripemd160  72a1289da6293275761c2b35b7b228719a2cd643 