77938 (number)
77,938 (seventyseven thousand nine hundred thirtyeight) is an even fivedigits composite number following 77937 and preceding 77939. In scientific notation, it is written as 7.7938 × 10^{4}. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 31,536 positive integers (up to 77938) that are relatively prime to 77938.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 5
 Sum of Digits 34
 Digital Root 7
Name
Short name  77 thousand 938 

Full name  seventyseven thousand nine hundred thirtyeight 
Notation
Scientific notation  7.7938 × 10^{4} 

Engineering notation  77.938 × 10^{3} 
Prime Factorization of 77938
Prime Factorization 2 × 7 × 19 × 293
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  77938  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 77,938 is 2 × 7 × 19 × 293. Since it has a total of 4 prime factors, 77,938 is a composite number.
Divisors of 77938
16 divisors
τ(n)  Total Divisors  16  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  141120  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  63182  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  8820  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  279.17378100388  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  8.8365079365079  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 77,938 can be divided by 16 positive divisors (out of which 8 are even, and 8 are odd). The sum of these divisors (counting 77,938) is 141,120, the average is 8,820.
Other Arithmetic Functions (n = 77938)
φ(n)  Euler Totient  31536  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  2628  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 7649  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 31,536 positive integers (less than 77,938) that are coprime with 77,938. And there are approximately 7,649 prime numbers less than or equal to 77,938.
Divisibility of 77938
m  2  3  4  5  6  7  8  9 

n mod m  0  1  2  3  4  0  2  7 
The number 77,938 is divisible by 2 and 7.
Classification of 77938
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (77938)
Base  System  Value 

2  Binary  10011000001110010 
3  Ternary  10221220121 
4  Quaternary  103001302 
5  Quinary  4443223 
6  Senary  1400454 
8  Octal  230162 
10  Decimal  77938 
12  Duodecimal  3912a 
16  Hexadecimal  13072 
20  Vigesimal  9egi 
36  Base36  1o4y 
Basic calculations (n = 77938)
Multiplication
n×yn×2  155876 

n×3  233814 
n×4  311752 
n×5  389690 
Division
n÷yn÷2  38969.000 

n÷3  25979.333 
n÷4  19484.500 
n÷5  15587.600 
Exponentiation
n^{y}n^{2}  6074331844 

n^{3}  473421275257672 
n^{4}  36897507351032440336 
n^{5}  2875717927924766334907168 
Nth Root
^{y}√n^{2}√n  279.17378100388 

^{3}√n  42.715263096563 
^{4}√n  16.70849427698 
^{5}√n  9.5137087385779 
77938 as geometric shapes
Circle
Radius = nDiameter  155876 

Circumference  489698.89647096 
Area  19083076296.577 
Sphere
Radius = nVolume  1.9830624005368E+15 

Surface area  76332305186.308 
Circumference  489698.89647096 
Square
Length = nPerimeter  311752 

Area  6074331844 
Diagonal  110220.97662423 
Cube
Length = nSurface area  36445991064 

Volume  473421275257672 
Space diagonal  134992.5758403 
Equilateral Triangle
Length = nPerimeter  233814 

Area  2630262843.9604 
Altitude  67496.287920152 
Triangular Pyramid
Length = nSurface area  10521051375.842 

Volume  55793232348780 
Height  63636.110524345 
Cryptographic Hash Functions
md5  73255d4ec6aae14ba38bce5c1341a4c0 

sha1  2f6836f2ebd246b5550c7fb7b6d03574eb49b54f 
sha256  c9f5dddcb22f86ddf361274e8abcdb592dd6a730b8306230f00435baecc0f1b9 
sha512  a4f2df00f3a7f7121b93895935809d1ab02a75625d8127bef93ad733219253dc2efcc1bb324e73ef9f7497e17bcfc386be02faa71f918b6f59eb90b824f0ce74 
ripemd160  c6018978579d638585f1d432247f80b9e1e1c934 