123830 (number)
123,830 (one hundred twentythree thousand eight hundred thirty) is an even sixdigits composite number following 123829 and preceding 123831. In scientific notation, it is written as 1.2383 × 10^{5}. The sum of its digits is 17. It has a total of 5 prime factors and 32 positive divisors. There are 40,320 positive integers (up to 123830) that are relatively prime to 123830.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 6
 Sum of Digits 17
 Digital Root 8
Name
Short name  123 thousand 830 

Full name  one hundred twentythree thousand eight hundred thirty 
Notation
Scientific notation  1.2383 × 10^{5} 

Engineering notation  123.83 × 10^{3} 
Prime Factorization of 123830
Prime Factorization 2 × 5 × 7 × 29 × 61
Composite numberω(n)  Distinct Factors  5  Total number of distinct prime factors 

Ω(n)  Total Factors  5  Total number of prime factors 
rad(n)  Radical  123830  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 123,830 is 2 × 5 × 7 × 29 × 61. Since it has a total of 5 prime factors, 123,830 is a composite number.
Divisors of 123830
32 divisors
τ(n)  Total Divisors  32  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  267840  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  144010  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  8370  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  351.89487066452  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  14.794504181601  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 123,830 can be divided by 32 positive divisors (out of which 16 are even, and 16 are odd). The sum of these divisors (counting 123,830) is 267,840, the average is 8,370.
Other Arithmetic Functions (n = 123830)
φ(n)  Euler Totient  40320  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  420  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 11605  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 40,320 positive integers (less than 123,830) that are coprime with 123,830. And there are approximately 11,605 prime numbers less than or equal to 123,830.
Divisibility of 123830
m  2  3  4  5  6  7  8  9 

n mod m  0  2  2  0  2  0  6  8 
The number 123,830 is divisible by 2, 5 and 7.
Classification of 123830
By Arithmetic functions
 Arithmetic
 Abundant
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (123830)
Base  System  Value 

2  Binary  11110001110110110 
3  Ternary  20021212022 
4  Quaternary  132032312 
5  Quinary  12430310 
6  Senary  2353142 
8  Octal  361666 
10  Decimal  123830 
12  Duodecimal  5b7b2 
16  Hexadecimal  1e3b6 
20  Vigesimal  f9ba 
36  Base36  2njq 
Basic calculations (n = 123830)
Multiplication
n×yn×2  247660 

n×3  371490 
n×4  495320 
n×5  619150 
Division
n÷yn÷2  61915.000 

n÷3  41276.666 
n÷4  30957.500 
n÷5  24766.000 
Exponentiation
n^{y}n^{2}  15333868900 

n^{3}  1898792985887000 
n^{4}  235127535442387210000 
n^{5}  29115842713830808214300000 
Nth Root
^{y}√n^{2}√n  351.89487066452 

^{3}√n  49.843510733154 
^{4}√n  18.758861123867 
^{5}√n  10.436747452745 
123830 as geometric shapes
Circle
Radius = nDiameter  247660 

Circumference  778046.83658805 
Area  48172769887.349 
Sphere
Radius = nVolume  7.9536454602006E+15 

Surface area  192691079549.4 
Circumference  778046.83658805 
Square
Length = nPerimeter  495320 

Area  15333868900 
Diagonal  175122.06542866 
Cube
Length = nSurface area  92003213400 

Volume  1898792985887000 
Space diagonal  214479.85150125 
Equilateral Triangle
Length = nPerimeter  371490 

Area  6639760002.8501 
Altitude  107239.92575063 
Triangular Pyramid
Length = nSurface area  26559040011.4 

Volume  2.2377489939836E+14 
Height  101106.77161628 
Cryptographic Hash Functions
md5  23761b13b4c0c8e30ad7740d924f17d2 

sha1  9e69962d347d6301569036f88385af00ecc6cd36 
sha256  01d4b9d33f2c9f0bd2a36496703ae83efdc37ca4a138bee371239ed697424715 
sha512  825a06ad9ab5bc935fd2598004e04c81fba858d8fb4a48cbd3861fe6c72558609b96aed0ca5902f4b2405a51e7ced13d1609cc63a292a149713fb1b3d91be8a5 
ripemd160  b3a3684d0b517c74c96f6b1c2ef9b92ed974bf5a 