212957 (number)
212,957 (two hundred twelve thousand nine hundred fiftyseven) is an odd sixdigits composite number following 212956 and preceding 212958. In scientific notation, it is written as 2.12957 × 10^{5}. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 198,352 positive integers (up to 212957) that are relatively prime to 212957.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 26
 Digital Root 8
Name
Short name  212 thousand 957 

Full name  two hundred twelve thousand nine hundred fiftyseven 
Notation
Scientific notation  2.12957 × 10^{5} 

Engineering notation  212.957 × 10^{3} 
Prime Factorization of 212957
Prime Factorization 23 × 47 × 197
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  212957  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 212,957 is 23 × 47 × 197. Since it has a total of 3 prime factors, 212,957 is a composite number.
Divisors of 212957
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  228096  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  15139  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  28512  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  461.47264274277  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  7.4690305836139  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 212,957 can be divided by 8 positive divisors (out of which 0 are even, and 8 are odd). The sum of these divisors (counting 212,957) is 228,096, the average is 28,512.
Other Arithmetic Functions (n = 212957)
φ(n)  Euler Totient  198352  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  49588  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 18991  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 198,352 positive integers (less than 212,957) that are coprime with 212,957. And there are approximately 18,991 prime numbers less than or equal to 212,957.
Divisibility of 212957
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  2  5  3  5  8 
212,957 is not divisible by any number less than or equal to 9.
Classification of 212957
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
 Sphenic
Base conversion (212957)
Base  System  Value 

2  Binary  110011111111011101 
3  Ternary  101211010022 
4  Quaternary  303333131 
5  Quinary  23303312 
6  Senary  4321525 
8  Octal  637735 
10  Decimal  212957 
12  Duodecimal  a32a5 
16  Hexadecimal  33fdd 
20  Vigesimal  16c7h 
36  Base36  4kbh 
Basic calculations (n = 212957)
Multiplication
n×yn×2  425914 

n×3  638871 
n×4  851828 
n×5  1064785 
Division
n÷yn÷2  106478.500 

n÷3  70985.666 
n÷4  53239.250 
n÷5  42591.400 
Exponentiation
n^{y}n^{2}  45350683849 

n^{3}  9657745580431493 
n^{4}  2056684525571949454801 
n^{5}  437985366512225640046056557 
Nth Root
^{y}√n^{2}√n  461.47264274277 

^{3}√n  59.716907148728 
^{4}√n  21.481914317462 
^{5}√n  11.63210688094 
212957 as geometric shapes
Circle
Radius = nDiameter  425914 

Circumference  1338048.293461 
Area  142473375215.29 
Sphere
Radius = nVolume  4.045427008763E+16 

Surface area  569893500861.17 
Circumference  1338048.293461 
Square
Length = nPerimeter  851828 

Area  45350683849 
Diagonal  301166.67760229 
Cube
Length = nSurface area  272104103094 

Volume  9657745580431493 
Space diagonal  368852.34382745 
Equilateral Triangle
Length = nPerimeter  638871 

Area  19637422146.115 
Altitude  184426.17191372 
Triangular Pyramid
Length = nSurface area  78549688584.461 

Volume  1.1381762318163E+15 
Height  173878.66238463 
Cryptographic Hash Functions
md5  e0853ba7cec632a58e91a101d62bc667 

sha1  8ba90b204bc899f637b4679836fa071fb3c49b03 
sha256  0db4e72fd3ea2b0a2bca928cb6f2c1a9494aada933f48702ba59f1d7110c758d 
sha512  a39a9c22818c3f94de66f385561340a8c932eaf98f7038f8779278a1a48c085bc550cf4f203b5209fd773cd4494f92cdc36cd4b2cfefbdc120d37260a8cd9ec0 
ripemd160  ba76f5a7e042e82c4afcaa8f46503609cb2a9a28 