40638 (number)
40,638 (forty thousand six hundred thirtyeight) is an even fivedigits composite number following 40637 and preceding 40639. In scientific notation, it is written as 4.0638 × 10^{4}. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 12,480 positive integers (up to 40638) that are relatively prime to 40638.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 5
 Sum of Digits 21
 Digital Root 3
Name
Short name  40 thousand 638 

Full name  forty thousand six hundred thirtyeight 
Notation
Scientific notation  4.0638 × 10^{4} 

Engineering notation  40.638 × 10^{3} 
Prime Factorization of 40638
Prime Factorization 2 × 3 × 13 × 521
Composite numberω(n)  Distinct Factors  4  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  40638  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 40,638 is 2 × 3 × 13 × 521. Since it has a total of 4 prime factors, 40,638 is a composite number.
Divisors of 40638
16 divisors
τ(n)  Total Divisors  16  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  87696  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  47058  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  5481  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  201.58869015895  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  7.4143404488232  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 40,638 can be divided by 16 positive divisors (out of which 8 are even, and 8 are odd). The sum of these divisors (counting 40,638) is 87,696, the average is 5,481.
Other Arithmetic Functions (n = 40638)
φ(n)  Euler Totient  12480  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1560  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 4260  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 12,480 positive integers (less than 40,638) that are coprime with 40,638. And there are approximately 4,260 prime numbers less than or equal to 40,638.
Divisibility of 40638
m  2  3  4  5  6  7  8  9 

n mod m  0  0  2  3  0  3  6  3 
The number 40,638 is divisible by 2, 3 and 6.
Classification of 40638
By Arithmetic functions
 Arithmetic
 Abundant
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (40638)
Base  System  Value 

2  Binary  1001111010111110 
3  Ternary  2001202010 
4  Quaternary  21322332 
5  Quinary  2300023 
6  Senary  512050 
8  Octal  117276 
10  Decimal  40638 
12  Duodecimal  1b626 
16  Hexadecimal  9ebe 
20  Vigesimal  51bi 
36  Base36  vcu 
Basic calculations (n = 40638)
Multiplication
n×yn×2  81276 

n×3  121914 
n×4  162552 
n×5  203190 
Division
n÷yn÷2  20319.000 

n÷3  13546.000 
n÷4  10159.500 
n÷5  8127.600 
Exponentiation
n^{y}n^{2}  1651447044 

n^{3}  67111504974072 
n^{4}  2727277339136337936 
n^{5}  110831096507822501043168 
Nth Root
^{y}√n^{2}√n  201.58869015895 

^{3}√n  34.380388136105 
^{4}√n  14.198193200508 
^{5}√n  8.3519226821214 
40638 as geometric shapes
Circle
Radius = nDiameter  81276 

Circumference  255336.08451316 
Area  5188173901.223 
Sphere
Radius = nVolume  2.8111601466387E+14 

Surface area  20752695604.892 
Circumference  255336.08451316 
Square
Length = nPerimeter  162552 

Area  1651447044 
Diagonal  57470.810747718 
Cube
Length = nSurface area  9908682264 

Volume  67111504974072 
Space diagonal  70387.080717984 
Equilateral Triangle
Length = nPerimeter  121914 

Area  715097546.55436 
Altitude  35193.540358992 
Triangular Pyramid
Length = nSurface area  2860390186.2174 

Volume  7909166710466.8 
Height  33180.788055741 
Cryptographic Hash Functions
md5  aad30043fc2c322d246f3279345448b9 

sha1  67931b475a0a6f04060e7548acc6eb76be6968b8 
sha256  3c70f01d8920ef1b2b027211e0bffb3c1ef91224e0f2e9ac65420425095b2f31 
sha512  e5a75b445ae0e9104d33131f6de6dfbef814025da08027a139076dbde8092d788043bdfaf794b792297e5fdfcb9f32ad111184f997a5c1aa2014e5fd01731a83 
ripemd160  fe071aad7e5f5332e6704b6aff494194f1fddc6e 