212123 (number)
212,123 (two hundred twelve thousand one hundred twentythree) is an odd sixdigits prime number following 212122 and preceding 212124. In scientific notation, it is written as 2.12123 × 10^{5}. The sum of its digits is 11. It has a total of 1 prime factor and 2 positive divisors. There are 212,122 positive integers (up to 212123) that are relatively prime to 212123.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 6
 Sum of Digits 11
 Digital Root 2
Name
Short name  212 thousand 123 

Full name  two hundred twelve thousand one hundred twentythree 
Notation
Scientific notation  2.12123 × 10^{5} 

Engineering notation  212.123 × 10^{3} 
Prime Factorization of 212123
Prime Factorization 212123
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  212123  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  12.264921574089  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 212,123 is 212123. Since it has a total of 1 prime factor, 212,123 is a prime number.
Divisors of 212123
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  212124  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  106062  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  460.56812742525  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999905715525  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 212,123 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 212,123) is 212,124, the average is 106,062.
Other Arithmetic Functions (n = 212123)
φ(n)  Euler Totient  212122  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  212122  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 18923  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 212,122 positive integers (less than 212,123) that are coprime with 212,123. And there are approximately 18,923 prime numbers less than or equal to 212,123.
Divisibility of 212123
m  2  3  4  5  6  7  8  9 

n mod m  1  2  3  3  5  2  3  2 
212,123 is not divisible by any number less than or equal to 9.
Classification of 212123
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
By Powers
 Prime Power
 Square Free
Base conversion (212123)
Base  System  Value 

2  Binary  110011110010011011 
3  Ternary  101202222102 
4  Quaternary  303302123 
5  Quinary  23241443 
6  Senary  4314015 
8  Octal  636233 
10  Decimal  212123 
12  Duodecimal  a290b 
16  Hexadecimal  33c9b 
20  Vigesimal  16a63 
36  Base36  4job 
Basic calculations (n = 212123)
Multiplication
n×yn×2  424246 

n×3  636369 
n×4  848492 
n×5  1060615 
Division
n÷yn÷2  106061.500 

n÷3  70707.666 
n÷4  53030.750 
n÷5  42424.600 
Exponentiation
n^{y}n^{2}  44996167129 

n^{3}  9544721959904867 
n^{4}  2024655056300900102641 
n^{5}  429475904507715832472516843 
Nth Root
^{y}√n^{2}√n  460.56812742525 

^{3}√n  59.638849046566 
^{4}√n  21.460851041495 
^{5}√n  11.622981649113 
212123 as geometric shapes
Circle
Radius = nDiameter  424246 

Circumference  1332808.1169149 
Area  141359628092.16 
Sphere
Radius = nVolume  3.9980837853059E+16 

Surface area  565438512368.66 
Circumference  1332808.1169149 
Square
Length = nPerimeter  848492 

Area  44996167129 
Diagonal  299987.22349127 
Cube
Length = nSurface area  269977002774 

Volume  9544721959904867 
Space diagonal  367407.81345393 
Equilateral Triangle
Length = nPerimeter  636369 

Area  19483911903.322 
Altitude  183703.90672697 
Triangular Pyramid
Length = nSurface area  77935647613.289 

Volume  1.1248562703981E+15 
Height  173197.70423613 
Cryptographic Hash Functions
md5  631adfda20949eb1f2533d1da0b505a4 

sha1  86f2a0eff41c49e9523c2703ef8dca6d5f594d25 
sha256  b4aa8163928d712c41e13468a7378be9466c0468662d70ece430b794239c1b67 
sha512  241ad49e9ea342c97b2cc1e16efc2d4e7d93e568d2f8609d83e9bc6375f780969810a718d9f0f64a80f08a911dac88a848e4e1681dae1fc94c6ed3b734500cb2 
ripemd160  3f9a88d8e24b409104077825d37ebfe959f72e4a 