28215 (number)

28215 is an odd 5-digits composite number following 28214 and preceding 28216. In scientific notation, it is written as 2.8215 × 10^4. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 12960 positive integers (up to 28215) that are relatively prime to 28215.

Interesting facts

Basic properties

Name

Name twenty-eight thousand two hundred fifteen

Notation

Scientific notation 2.8215 × 10^4
Engineering notation 2.8215 × 10^3

Prime Factorization of 28215

Prime Factorization 15 × 9 × 11 × 19

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28215
Product of the distinct prime numbers

The prime factorization of 28215 is 15 × 9 × 11 × 19. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 60, 82, 226, 261, 8733, 6544, 47471, 98449, 248469, 481666, 6269733, 6980979, 87860572, 9857863, 159170978, 394295875, 8032013829, 1397874209

Basic calculations (n = 28215)

Multiplication

n×y
n×2 56430
n×3 84645
n×4 112860
n×5 141075

Division

n÷y
n÷2 14107.5
n÷3 9405
n÷3 7053.75
n÷5 5643

Exponentiation

ny
n2 796086225
n3 22461572838375
n4 633753277634750625
n5 1.7881348728464E+22

Nth Root

y√n
2√n 167.97321215003
3√n 30.443413848921
4√n 12.960447991873
5√n 7.7641874312308

Divisors of 28215

1, 9, 11, 15, 19, 99, 135, 165, 171, 209, 285, 1485, 1881, 2565, 3135, 28215

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 -28214
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 28215 can be divided by 16 positive divisors. The sum of these divisors (counting 28215) is 1, the average is 0.0625.

Base conversion 28215

Base System Value
2 Binary 110111000110111
3 Ternary 1102201000
4 Quaternary 12320313
5 Quinary 1400330
6 Senary 334343
8 Octal 67067
10 Decimal 28215
12 Duodecimal 143b3
16 Hexadecimal 6e37
20 Vigesimal 3aaf
36 Base36 lrr

Cryptographic Hash Functions

md5 738c045d6205c050d3d6c57e5e6f2d76
sha1 0967ac9096c56a66f964844201062cbd8ad29a8d
sha256 c97e52b2b1e072dd996eb426ec57bba8291468244dc8172d530e78c20b0168e3
sha512 f728497778c9f948767efb25898c03e7fe05d85f111ff2e263a9bd8255d778a2994f98576b6236ecff49e93f8806137b5b8d159684d9b0ebaab84fd5ffbd7904
ripemd-160 e3322014e76d10576fb38b6e30c9d2c49c803765

28215 as geometric shapes

Circle

Radius = n
Diameter 56430
Circumference 177280.07344207
Area 2500978636.084

Sphere

Radius = n
Volume 94086816289481
Surface area 10003914544.336
Circumference 177280.07344207

Square

Length = n
Perimeter 112860
Area 796086225
Diagonal 39902.035662357

Cube

Length = n
Surface area 4776517350
Volume 22461572838375
Space diagonal 48869.813535556

Equilateral Triangle

Length = n
Perimeter 84645
Area 344715447.22643
Altitude 24434.906767778

Triangular Pyramid

Length = n
Surface area 344715447.22643
Volume 2647121745021.8
Height 13300.678554119