28691 (number)

28691 is an odd 5-digits composite number following 28690 and preceding 28692. In scientific notation, it is written as 2.8691 × 10^4. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 26472 positive integers (up to 28691) that are relatively prime to 28691.

Interesting facts

Basic properties

Name

Name twenty-eight thousand six hundred ninety-one

Notation

Scientific notation 2.8691 × 10^4
Engineering notation 2.8691 × 10^3

Prime Factorization of 28691

Prime Factorization 13 × 2207

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28691
Product of the distinct prime numbers

The prime factorization of 28691 is 13 × 2207. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 90, 73, 1, 843, 3708, 9101, 67798, 79688, 337411, 541003, 2879583, 4686346, 3470181, 60298005, 748443281, 957518972, 3120695812, 9175496579

Basic calculations (n = 28691)

Multiplication

n×y
n×2 57382
n×3 86073
n×4 114764
n×5 143455

Division

n÷y
n÷2 14345.5
n÷3 9563.6666666667
n÷3 7172.75
n÷5 5738.2

Exponentiation

ny
n2 823173481
n3 23617670343371
n4 677614579821657361
n5 1.9441439909663E+22

Nth Root

y√n
2√n 169.38417871808
3√n 30.613658163022
4√n 13.01476771664
5√n 7.7902094982042

Divisors of 28691

1, 13, 2207, 28691

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 -28690
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 28691 can be divided by 4 positive divisors. The sum of these divisors (counting 28691) is 1, the average is 0.25.

Base conversion 28691

Base System Value
2 Binary 111000000010011
3 Ternary 1110100122
4 Quaternary 13000103
5 Quinary 1404231
6 Senary 340455
8 Octal 70023
10 Decimal 28691
12 Duodecimal 1472b
16 Hexadecimal 7013
20 Vigesimal 3beb
36 Base36 m4z

Cryptographic Hash Functions

md5 7da3270fafd99ed8fcc9e395f4e7c181
sha1 a20d4d8b7f1f603bf0ab120a8ae7ac41c9e2863e
sha256 806d5b20e8f5443373fb88b462d50de607fbe40754e3e5fd08ca839f3560784e
sha512 2097def6d440257c7c73eaca4bb766d92e74102f921765644813244b79645b4a231e0fedc102fd800e4384b52925ba66d2cb46c305c1ed04146a9ff0f70c41fa
ripemd-160 586432acc316493cbd96b3cf59ef5b4ffbeb6261

28691 as geometric shapes

Circle

Radius = n
Diameter 57382
Circumference 180270.86964829
Area 2586075760.5395

Sphere

Radius = n
Volume 98929466194186
Surface area 10344303042.158
Circumference 180270.86964829

Square

Length = n
Perimeter 114764
Area 823173481
Diagonal 40575.201318046

Cube

Length = n
Surface area 4939040886
Volume 23617670343371
Space diagonal 49694.269719959

Equilateral Triangle

Length = n
Perimeter 86073
Area 356444573.13383
Altitude 24847.134859979

Triangular Pyramid

Length = n
Surface area 356444573.13383
Volume 2783369142604.3
Height 13525.067106015