20840 (number)

20840 is an even 5-digits composite number following 20839 and preceding 20841. In scientific notation, it is written as 2.0840 × 10^4. The sum of its digits is 14. It has a total of 5 prime factors and 16 positive divisors. There are 8320 positive integers (up to 20840) that are relatively prime to 20840.

Interesting facts

Basic properties

Name

Name twenty thousand eight hundred forty

Notation

Scientific notation 2.0840 × 10^4
Engineering notation 2.0840 × 10^3

Prime Factorization of 20840

Prime Factorization 2 × 2 × 2 × 5 × 521

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5210
Product of the distinct prime numbers

The prime factorization of 20840 is 2 × 2 × 2 × 5 × 521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 72, 41, 27, 582, 8475, 602, 10522, 20744, 457300, 287793, 9139185, 6546326, 38586062, 42040813, 713597879, 684695009, 5574447705, 3016562498

Basic calculations (n = 20840)

Multiplication

n×y
n×2 41680
n×3 62520
n×4 83360
n×5 104200

Division

n÷y
n÷2 10420
n÷3 6946.6666666667
n÷3 5210
n÷5 4168

Exponentiation

ny
n2 434305600
n3 9050928704000
n4 188621354191360000
n5 3.9308690213479E+21

Nth Root

y√n
2√n 144.36065946095
3√n 27.518995140883
4√n 12.015018079926
5√n 7.3076803598769

Divisors of 20840

1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 10420, 20840

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20840 can be divided by 16 positive divisors. The sum of these divisors (counting 20840) is 1, the average is 0.0625.

Base conversion 20840

Base System Value
2 Binary 101000101101000
3 Ternary 1001120212
4 Quaternary 11011220
5 Quinary 1131330
6 Senary 240252
8 Octal 50550
10 Decimal 20840
12 Duodecimal 10088
16 Hexadecimal 5168
20 Vigesimal 2c20
36 Base36 g2w

Cryptographic Hash Functions

md5 0383aa006955b67fb5d9110bc2522d8f
sha1 15ede3afc63c9b777b1143a1a1579146de7184ee
sha256 5b89020b1563613b99afe3b5bed48b570e9145793e48fe950712e8c8962c1b0e
sha512 28b3156cf50f3df017645445138c76e54af06a10cc0b88867dc2cffe366951676db0dfab630de7c859c3c5a1c288769628d277b3908a850c925d2636505571a5
ripemd-160 8131cc068bdc54c5cfc2a2bba07b6a95451a912c

20840 as geometric shapes

Circle

Radius = n
Diameter 41680
Circumference 130941.58180162
Area 1364411282.3729

Sphere

Radius = n
Volume 37912441499535
Surface area 5457645129.4916
Circumference 130941.58180162

Square

Length = n
Perimeter 83360
Area 434305600
Diagonal 29472.210639855

Cube

Length = n
Surface area 2605833600
Volume 9050928704000
Space diagonal 36095.938829735

Equilateral Triangle

Length = n
Perimeter 62520
Area 188059841.30292
Altitude 18047.969414868

Triangular Pyramid

Length = n
Surface area 188059841.30292
Volume 1066662177105.7
Height 9824.0702132851