123431 (number)
123,431 (one hundred twentythree thousand four hundred thirtyone) is an odd sixdigits composite number following 123430 and preceding 123432. In scientific notation, it is written as 1.23431 × 10^{5}. The sum of its digits is 14. It has a total of 4 prime factors and 12 positive divisors. There are 95,760 positive integers (up to 123431) that are relatively prime to 123431.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 14
 Digital Root 5
Name
Short name  123 thousand 431 

Full name  one hundred twentythree thousand four hundred thirtyone 
Notation
Scientific notation  1.23431 × 10^{5} 

Engineering notation  123.431 × 10^{3} 
Prime Factorization of 123431
Prime Factorization 7^{2} × 11 × 229
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  17633  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 123,431 is 7^{2} × 11 × 229. Since it has a total of 4 prime factors, 123,431 is a composite number.
Divisors of 123431
12 divisors
τ(n)  Total Divisors  12  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  157320  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  33889  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  13110  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  351.32748255723  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  9.4150266971777  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 123,431 can be divided by 12 positive divisors (out of which 0 are even, and 12 are odd). The sum of these divisors (counting 123,431) is 157,320, the average is 13,110.
Other Arithmetic Functions (n = 123431)
φ(n)  Euler Totient  95760  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  7980  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 11571  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 95,760 positive integers (less than 123,431) that are coprime with 123,431. And there are approximately 11,571 prime numbers less than or equal to 123,431.
Divisibility of 123431
m  2  3  4  5  6  7  8  9 

n mod m  1  2  3  1  5  0  7  5 
The number 123,431 is divisible by 7.
Classification of 123431
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
Base conversion (123431)
Base  System  Value 

2  Binary  11110001000100111 
3  Ternary  20021022112 
4  Quaternary  132020213 
5  Quinary  12422211 
6  Senary  2351235 
8  Octal  361047 
10  Decimal  123431 
12  Duodecimal  5b51b 
16  Hexadecimal  1e227 
20  Vigesimal  f8bb 
36  Base36  2n8n 
Basic calculations (n = 123431)
Multiplication
n×yn×2  246862 

n×3  370293 
n×4  493724 
n×5  617155 
Division
n÷yn÷2  61715.500 

n÷3  41143.666 
n÷4  30857.750 
n÷5  24686.200 
Exponentiation
n^{y}n^{2}  15235211761 

n^{3}  1880497422871991 
n^{4}  232111677402512721121 
n^{5}  28649776453469547680686151 
Nth Root
^{y}√n^{2}√n  351.32748255723 

^{3}√n  49.789918551941 
^{4}√n  18.743731820457 
^{5}√n  10.430012994536 
123431 as geometric shapes
Circle
Radius = nDiameter  246862 

Circumference  775539.84565048 
Area  47862829344.242 
Sphere
Radius = nVolume  7.8770091850522E+15 

Surface area  191451317376.97 
Circumference  775539.84565048 
Square
Length = nPerimeter  493724 

Area  15235211761 
Diagonal  174557.79421727 
Cube
Length = nSurface area  91411270566 

Volume  1880497422871991 
Space diagonal  213788.76322903 
Equilateral Triangle
Length = nPerimeter  370293 

Area  6597040208.5307 
Altitude  106894.38161452 
Triangular Pyramid
Length = nSurface area  26388160834.123 

Volume  2.2161874661944E+14 
Height  100780.98948049 
Cryptographic Hash Functions
md5  c96c5bc698f863e79c3e8deb39b55bb2 

sha1  4a67047b5a7d54233c8f40fc7669907e3e1c2dac 
sha256  b78abb5c58d690792d3bcbb456426055615de10b0d0da7c8502397462d2bc9ed 
sha512  3e74babc2742437665b411fe91a08e45701878c7b92c3a05c6577205ba4a28b2ae3da67bf97bc5bfc403991213392bb3903a1f26a3500e24b0253d79752d408f 
ripemd160  55da6d41de8e49337cb8913817311fd85723ba1a 