209 (number)

209 is an odd 3-digits composite number following 208 and preceding 210. In scientific notation, it is written as 2.09 × 10^2. The sum of its digits is 11. It has a total of 2 prime factors and 4 positive divisors. There are 180 positive integers (up to 209) that are relatively prime to 209.

Interesting facts

Basic properties

Name

Name two hundred nine

Notation

Scientific notation 2.09 × 10^2
Engineering notation 2.09 × 10^0

Prime Factorization of 209

Prime Factorization 19 × 11

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 209
Product of the distinct prime numbers

The prime factorization of 209 is 19 × 11. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 209)

Multiplication

n×y
n×2 418
n×3 627
n×4 836
n×5 1045

Division

n÷y
n÷2 104.5
n÷3 69.666666666667
n÷3 52.25
n÷5 41.8

Exponentiation

ny
n2 43681
n3 9129329
n4 1908029761
n5 398778220049

Nth Root

y√n
2√n 14.456832294801
3√n 5.9344721403999
4√n 3.8022141305825
5√n 2.9109132116612

Divisors of 209

1, 11, 19, 209

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -208
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 209 can be divided by 4 positive divisors. The sum of these divisors (counting 209) is 1, the average is 0.25.

Base conversion 209

Base System Value
2 Binary 11010001
3 Ternary 21202
4 Quaternary 3101
5 Quinary 1314
6 Senary 545
8 Octal 321
10 Decimal 209
12 Duodecimal 155
16 Hexadecimal d1
20 Vigesimal a9
36 Base36 5t

Cryptographic Hash Functions

md5 b1d10e7bafa4421218a51b1e1f1b0ba2
sha1 acfdd18ea7f4a2ba74132ba977dc207204142994
sha256 83f814f7a92e365cbd79f9addceed185761a8d38a06a2d4350bb1fe4b7632b34
sha512 c2bef5a46abc8a9f3c1447a2a168baf34f2770084be0d9a03546540f117360c6faf35d80a4922fea09cb69c418ad08439bcb3fa6bf09a9e570bc2b1912b2906d
ripemd-160 355d4c14dd3e34e697910573e66e2fac44d77888

209 as geometric shapes

Circle

Radius = n
Diameter 418
Circumference 1313.1857292005
Area 137227.90870146

Sphere

Radius = n
Volume 38240843.891472
Surface area 548911.63480582
Circumference 1313.1857292005

Square

Length = n
Perimeter 836
Area 43681
Diagonal 295.57063453598

Cube

Length = n
Surface area 262086
Volume 9129329
Space diagonal 361.9986187819

Equilateral Triangle

Length = n
Perimeter 627
Area 18914.427831354
Altitude 180.99930939095

Triangular Pyramid

Length = n
Surface area 18914.427831354
Volume 1075901.7405972
Height 98.523544845326