28131 (number)

28131 is an odd 5-digits composite number following 28130 and preceding 28132. In scientific notation, it is written as 2.8131 × 10^4. The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors. There are 18752 positive integers (up to 28131) that are relatively prime to 28131.

Interesting facts

Basic properties

Name

Name twenty-eight thousand one hundred thirty-one

Notation

Scientific notation 2.8131 × 10^4
Engineering notation 2.8131 × 10^3

Prime Factorization of 28131

Prime Factorization 3 × 9377

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28131
Product of the distinct prime numbers

The prime factorization of 28131 is 3 × 9377. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 11, 82, 566, 333, 6859, 6414, 65821, 19890, 399219, 180486, 8596186, 4534127, 57016300, 62493575, 939506822, 601383754, 8322053711, 9463907850

Basic calculations (n = 28131)

Multiplication

n×y
n×2 56262
n×3 84393
n×4 112524
n×5 140655

Division

n÷y
n÷2 14065.5
n÷3 9377
n÷3 7032.75
n÷5 5626.2

Exponentiation

ny
n2 791353161
n3 22261555772091
n4 626239825424691921
n5 1.7616752529022E+22

Nth Root

y√n
2√n 167.72298590235
3√n 30.413172384813
4√n 12.950790937327
5√n 7.759558901719

Divisors of 28131

1, 3, 9377, 28131

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 -28130
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 28131 can be divided by 4 positive divisors. The sum of these divisors (counting 28131) is 1, the average is 0.25.

Base conversion 28131

Base System Value
2 Binary 110110111100011
3 Ternary 1102120220
4 Quaternary 12313203
5 Quinary 1400011
6 Senary 334123
8 Octal 66743
10 Decimal 28131
12 Duodecimal 14343
16 Hexadecimal 6de3
20 Vigesimal 3a6b
36 Base36 lpf

Cryptographic Hash Functions

md5 a8d6452ad4feb2545d93de0400874b63
sha1 c055429ae1692b709fd942f263e71740bfcd7c09
sha256 6457ce9595b16b37e32f756ab05f2d50a43e104a223eeadefa082784f41121cf
sha512 74a2c4fa78600f57a0d9c80b03d917f13c894748be8ba5e22ff959a5791e49bac3f15b1fa92f5267892c71102f61bbf329267b7ba761e608ff3927dd4530458f
ripemd-160 b7bf0c532a59df61670c9df8d8ceb93f7a6faa05

28131 as geometric shapes

Circle

Radius = n
Diameter 56262
Circumference 176752.28587627
Area 2486109276.9927

Sphere

Radius = n
Volume 93248986761441
Surface area 9944437107.9706
Circumference 176752.28587627

Square

Length = n
Perimeter 112524
Area 791353161
Diagonal 39783.241723118

Cube

Length = n
Surface area 4748118966
Volume 22261555772091
Space diagonal 48724.32126772

Equilateral Triangle

Length = n
Perimeter 84393
Area 342665970.39556
Altitude 24362.16063386

Triangular Pyramid

Length = n
Surface area 342665970.39556
Volume 2623549507701.3
Height 13261.080574373