20782 (number)

20782 is an even 5-digits composite number following 20781 and preceding 20783. In scientific notation, it is written as 2.0782 × 10^4. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 10390 positive integers (up to 20782) that are relatively prime to 20782.

Interesting facts

Basic properties

Name

Name twenty thousand seven hundred eighty-two

Notation

Scientific notation 2.0782 × 10^4
Engineering notation 2.0782 × 10^3

Prime Factorization of 20782

Prime Factorization 2 × 10391

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20782
Product of the distinct prime numbers

The prime factorization of 20782 is 2 × 10391. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 19, 39, 219, 524, 5077, 5829, 89380, 73499, 687341, 4455, 9650796, 7948516, 16656862, 89763326, 216595073, 605614933, 8363266937, 4919884205

Basic calculations (n = 20782)

Multiplication

n×y
n×2 41564
n×3 62346
n×4 83128
n×5 103910

Division

n÷y
n÷2 10391
n÷3 6927.3333333333
n÷3 5195.5
n÷5 4156.4

Exponentiation

ny
n2 431891524
n3 8975569651768
n4 186530288503042576
n5 3.8764724556702E+21

Nth Root

y√n
2√n 144.15963373982
3√n 27.493441962373
4√n 12.006649563464
5√n 7.3036082092662

Divisors of 20782

1, 2, 10391, 20782

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 -20781
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 20782 can be divided by 4 positive divisors. The sum of these divisors (counting 20782) is 1, the average is 0.25.

Base conversion 20782

Base System Value
2 Binary 101000100101110
3 Ternary 1001111201
4 Quaternary 11010232
5 Quinary 1131112
6 Senary 240114
8 Octal 50456
10 Decimal 20782
12 Duodecimal 1003a
16 Hexadecimal 512e
20 Vigesimal 2bj2
36 Base36 g1a

Cryptographic Hash Functions

md5 68dad4509908e9a208274a1ca8135221
sha1 f4086a7c87f3665eccf604605f7eca4fc2454c45
sha256 ec32f69c22243c220a73fcc29654ae602b8cd3d16d046cbba5c36dfc8c766fb4
sha512 9d2b2fb86656b77ed1507f95b3da157269a1b81e2a3b6f60fd170d27d2130e621c212c859d8226e321bd826c9122533b1cd973e1032f9d2fffafb7a2080eb60b
ripemd-160 00bd7b3a3ccb8e499e2aa45861fb4f3d180b348e

20782 as geometric shapes

Circle

Radius = n
Diameter 41564
Circumference 130577.15705381
Area 1356827238.9461

Sphere

Radius = n
Volume 37596778239704
Surface area 5427308955.7844
Circumference 130577.15705381

Square

Length = n
Perimeter 83128
Area 431891524
Diagonal 29390.186253238

Cube

Length = n
Surface area 2591349144
Volume 8975569651768
Space diagonal 35995.479882896

Equilateral Triangle

Length = n
Perimeter 62346
Area 187014515.73159
Altitude 17997.739941448

Triangular Pyramid

Length = n
Surface area 187014515.73159
Volume 1057781027629.6
Height 9796.7287510792