20781328 (number)

20781328 is an even 8-digits composite number following 20781327 and preceding 20781329. In scientific notation, it is written as 2.0781328 × 10^7. The sum of its digits is 31. It has a total of 7 prime factors and 40 positive divisors. There are 9846144 positive integers (up to 20781328) that are relatively prime to 20781328.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-one thousand three hundred twenty-eight

Notation

Scientific notation 2.0781328 × 10^7
Engineering notation 2.0781328 × 10^6

Prime Factorization of 20781328

Prime Factorization 2 × 2 × 2 × 2 × 23 × 149 × 379

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2597666
Product of the distinct prime numbers

The prime factorization of 20781328 is 2 × 2 × 2 × 2 × 23 × 149 × 379. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20781328)

Multiplication

n×y
n×2 41562656
n×3 62343984
n×4 83125312
n×5 103906640

Division

n÷y
n÷2 10390664
n÷3 6927109.3333333
n÷3 5195332
n÷5 4156265.6

Exponentiation

ny
n2 431863593443584
n3 8.9746989866098E+21
n4 1.8650616334201E+29
n5 3.8758457544318E+36

Nth Root

y√n
2√n 4558.6541873671
3√n 274.9314561951
4√n 67.517806446649
5√n 29.075999948157

Divisors of 20781328

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20781327
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20781328 can be divided by 40 positive divisors. The sum of these divisors (counting 20781328) is 1, the average is 0.025.

Base conversion 20781328

Base System Value
2 Binary 1001111010001100100010000
3 Ternary 1110002210121211
4 Quaternary 1033101210100
5 Quinary 20310000303
6 Senary 2021225504
8 Octal 117214420
10 Decimal 20781328
12 Duodecimal 6b62294
16 Hexadecimal 13d1910
20 Vigesimal 69hd68
36 Base36 cdez4

Cryptographic Hash Functions

md5 12c16680036acda101801d9b6e07d357
sha1 510d0ff178bd78cbeb8b853e6dde6a8a12553cf2
sha256 3bbbe6aaf03a1ad4eb22dc05a94dcc5e1c5f1a615aae34fc8a6087fe5b56f094
sha512 557f54ec8a4bd447cc195feb348f677af5e5e59f325384a0adafb959d52d4f9151f9cc1df0582cb50077709be6a2aa54e29ae943efcdd775dbfcfb4c331e8d7d
ripemd-160 76165dfd24df22e3d10cc35e9dd8a50effa68632

20781328 as geometric shapes

Circle

Radius = n
Diameter 41562656
Circumference 130572934.75328
Area 1.3567394925153E+15

Sphere

Radius = n
Volume 3.7593131206017E+22
Surface area 5.426957970061E+15
Circumference 130572934.75328

Square

Length = n
Perimeter 83125312
Area 431863593443584
Diagonal 29389235.901724

Cube

Length = n
Surface area 2591181560661504
Volume 8.9746989866098E+21
Space diagonal 35994315.944754

Equilateral Triangle

Length = n
Perimeter 62343984
Area 1.8700242144589E+14
Altitude 17997157.972377

Triangular Pyramid

Length = n
Surface area 1.8700242144589E+14
Volume 1.0576784187566E+21
Height 9796411.9672412