20831728 (number)

20831728 is an even 8-digits composite number following 20831727 and preceding 20831729. In scientific notation, it is written as 2.0831728 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors. There are 10385984 positive integers (up to 20831728) that are relatively prime to 20831728.

Interesting facts

Basic properties

Name

Name twenty million eight hundred thirty-one thousand seven hundred twenty-eight

Notation

Scientific notation 2.0831728 × 10^7
Engineering notation 2.0831728 × 10^6

Prime Factorization of 20831728

Prime Factorization 2 × 2 × 2 × 2 × 3347 × 389

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2603966
Product of the distinct prime numbers

The prime factorization of 20831728 is 2 × 2 × 2 × 2 × 3347 × 389. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 8, 98, 82, 87, 979, 330, 6388, 27401, 26244, 363886, 561805, 6088077, 9015356, 50211579, 72732921, 393363245, 573430435, 8934991195, 8041943395

Basic calculations (n = 20831728)

Multiplication

n×y
n×2 41663456
n×3 62495184
n×4 83326912
n×5 104158640

Division

n÷y
n÷2 10415864
n÷3 6943909.3333333
n÷3 5207932
n÷5 4166345.6

Exponentiation

ny
n2 433960891465984
n3 9.0401552536569E+21
n4 1.8832205532195E+29
n5 3.9230738328678E+36

Nth Root

y√n
2√n 4564.1787870328
3√n 275.15353630118
4√n 67.558706226753
5√n 29.090089623717

Divisors of 20831728

1, 2, 4, 8, 16, 389, 778, 1556, 3112, 3347, 6224, 6694, 13388, 26776, 53552, 1301983, 2603966, 5207932, 10415864, 20831728

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20831727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20831728 can be divided by 20 positive divisors. The sum of these divisors (counting 20831728) is 1, the average is 0.05.

Base conversion 20831728

Base System Value
2 Binary 1001111011101110111110000
3 Ternary 1110012100202111
4 Quaternary 1033131313300
5 Quinary 20313103403
6 Senary 2022255104
8 Octal 117356760
10 Decimal 20831728
12 Duodecimal 6b87494
16 Hexadecimal 13dddf0
20 Vigesimal 6a3j68
36 Base36 cehv4

Cryptographic Hash Functions

md5 a26c3ce6a4ad5c982964e8372ac153e1
sha1 e0d75ca70771a51a5ce44b15da37c29af8763ac7
sha256 acc528f5fd43e332baa96b6302bd64191244da79d4ae3233cc04183f70849774
sha512 eb9252b0ca6a9a82834d16c438b66a41d8bd5bc84f56e62fc9c3dcbf0058208218446628d26d4c9ad2d538129bdd7276a40f79c451135cb797bdacdaf78e2c6c
ripemd-160 21674d96fbe5789c45fa89bee2189cd5c37fcc50

20831728 as geometric shapes

Circle

Radius = n
Diameter 41663456
Circumference 130889607.29276
Area 1.3633283485748E+15

Sphere

Radius = n
Volume 3.7867313776266E+22
Surface area 5.4533133942993E+15
Circumference 130889607.29276

Square

Length = n
Perimeter 83326912
Area 433960891465984
Diagonal 29460512.265267

Cube

Length = n
Surface area 2603765348795904
Volume 9.0401552536569E+21
Space diagonal 36081611.305455

Equilateral Triangle

Length = n
Perimeter 62495184
Area 1.8791057812924E+14
Altitude 18040805.652728

Triangular Pyramid

Length = n
Surface area 1.8791057812924E+14
Volume 1.0653925138067E+21
Height 9820170.7550891