206721 (number)

206721 is an odd 6-digits composite number following 206720 and preceding 206722. In scientific notation, it is written as 2.06721 × 10^5. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 135864 positive integers (up to 206721) that are relatively prime to 206721.

Interesting facts

Basic properties

Name

Name two hundred six thousand seven hundred twenty-one

Notation

Scientific notation 2.06721 × 10^5
Engineering notation 2.06721 × 10^3

Prime Factorization of 206721

Prime Factorization 9 × 103 × 223

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 206721
Product of the distinct prime numbers

The prime factorization of 206721 is 9 × 103 × 223. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 206721)

Multiplication

n×y
n×2 413442
n×3 620163
n×4 826884
n×5 1033605

Division

n÷y
n÷2 103360.5
n÷3 68907
n÷3 51680.25
n÷5 41344.2

Exponentiation

ny
n2 42733571841
n3 8833926704543361
n4 1.8261581622899E+21
n5 3.7750524146673E+26

Nth Root

y√n
2√n 454.66581133839
3√n 59.128228245917
4√n 21.322894065731
5√n 11.563170234727

Divisors of 206721

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -206720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 206721 can be divided by 8 positive divisors. The sum of these divisors (counting 206721) is 1, the average is 0.125.

Base conversion 206721

Base System Value
2 Binary 110010011110000001
3 Ternary 101111120100
4 Quaternary 302132001
5 Quinary 23103341
6 Senary 4233013
8 Octal 623601
10 Decimal 206721
12 Duodecimal 9b769
16 Hexadecimal 32781
20 Vigesimal 15gg1
36 Base36 4fi9

Cryptographic Hash Functions

md5 1c4ab12687f58cda59e6ee5d74e7ef70
sha1 cd6baea7ee567a897bb86220b102ff45e45bc9a3
sha256 71d26b8ecd8eb7b0e9187b2a4a1fd0c5fbef37dce7bad99b202080af005ba59e
sha512 982dfe2b803b00610945a82707a6576f24c69100e2efda6645080eb77dd16b6f7ee5f30de5d89fa1ced3ea2d8c57158fd18d38700bc3b3f3c159e718f4487d94
ripemd-160 3dffeeab9b0ad55afe0d3f5a574e154f9232f33d

206721 as geometric shapes

Circle

Radius = n
Diameter 413442
Circumference 1298866.3498855
Area 134251475357.34

Sphere

Radius = n
Volume 3.7003465649792E+16
Surface area 537005901429.35
Circumference 1298866.3498855

Square

Length = n
Perimeter 826884
Area 42733571841
Diagonal 292347.64182733

Cube

Length = n
Surface area 256401431046
Volume 8833926704543361
Space diagonal 358051.27499145

Equilateral Triangle

Length = n
Perimeter 620163
Area 18504179404.377
Altitude 179025.63749572

Triangular Pyramid

Length = n
Surface area 18504179404.377
Volume 1.0410882462146E+15
Height 97449.213942443