28128220 (number)

28128220 is an even 8-digits composite number following 28128219 and preceding 28128221. In scientific notation, it is written as 2.8128220 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors. There are 11174592 positive integers (up to 28128220) that are relatively prime to 28128220.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred twenty-eight thousand two hundred twenty

Notation

Scientific notation 2.8128220 × 10^7
Engineering notation 2.8128220 × 10^6

Prime Factorization of 28128220

Prime Factorization 2 × 2 × 5 × 149 × 9439

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14064110
Product of the distinct prime numbers

The prime factorization of 28128220 is 2 × 2 × 5 × 149 × 9439. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 61, 81, 230, 65, 9194, 4101, 5867, 3723, 228015, 392836, 5795846, 5775528, 40820153, 29344647, 690184890, 483853880, 3355999996, 2179105670

Basic calculations (n = 28128220)

Multiplication

n×y
n×2 56256440
n×3 84384660
n×4 112512880
n×5 140641100

Division

n÷y
n÷2 14064110
n÷3 9376073.3333333
n÷3 7032055
n÷5 5625644

Exponentiation

ny
n2 791196760368400
n3 2.225495653893E+22
n4 6.2599231361745E+29
n5 1.7608049515741E+37

Nth Root

y√n
2√n 5303.6044347217
3√n 304.12170507826
4√n 72.825850044622
5√n 30.89074980931

Divisors of 28128220

1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 9439, 18878, 37756, 47195, 94390, 188780, 1406411, 2812822, 5625644, 7032055, 14064110, 28128220

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28128219
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28128220 can be divided by 24 positive divisors. The sum of these divisors (counting 28128220) is 1, the average is 0.041666666666667.

Base conversion 28128220

Base System Value
2 Binary 1101011010011001111011100
3 Ternary 1221221001122221
4 Quaternary 1223103033130
5 Quinary 24200100340
6 Senary 2442515124
8 Octal 153231734
10 Decimal 28128220
12 Duodecimal 9505aa4
16 Hexadecimal 1ad33dc
20 Vigesimal 8fg0b0
36 Base36 gqvvg

Cryptographic Hash Functions

md5 8cab77473a89e5671668e4adbbfd42e3
sha1 b06d799d837a697b8ae394f237d648ef345355c3
sha256 02945b2394c93becd874934bdb8860cf438970ae4c61992bbe4fbc64cfc2b80b
sha512 2a712e79216149f5ff14547fd9064ba228f44e4de8a06ad1fd813cc9a84e9b05f689868bc895a7d1beaaa1656d5bc63bff95b4c0be6d14742ea98e98bed41a07
ripemd-160 b05106c091414f31823133c10fbc332c0ef3f01e

28128220 as geometric shapes

Circle

Radius = n
Diameter 56256440
Circumference 176734818.62111
Area 2.4856179299174E+15

Sphere

Radius = n
Volume 9.3221343958215E+22
Surface area 9.9424717196696E+15
Circumference 176734818.62111

Square

Length = n
Perimeter 112512880
Area 791196760368400
Diagonal 39779310.209414

Cube

Length = n
Surface area 4747180562210400
Volume 2.225495653893E+22
Space diagonal 48719506.166475

Equilateral Triangle

Length = n
Perimeter 84384660
Area 3.4259824693549E+14
Altitude 24359753.083238

Triangular Pyramid

Length = n
Surface area 3.4259824693549E+14
Volume 2.6227717806148E+21
Height 13259770.069805