28405488 (number)
28405488 is an even 8-digits composite number following 28405487 and preceding 28405489. In scientific notation, it is written as 2.8405488 × 10^7. The sum of its digits is 39. It has a total of 7 prime factors and 40 positive divisors. There are 9382912 positive integers (up to 28405488) that are relatively prime to 28405488.
Interesting facts
- 28405488 has 40 divisors, whose sum is 74044368
- The reverse of 28405488 is 88450482
- Previous prime number is 113
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 39
- Digital Root 3
Name
| Name | twenty-eight million four hundred five thousand four hundred eighty-eight |
|---|
Notation
| Scientific notation | 2.8405488 × 10^7 |
|---|---|
| Engineering notation | 2.8405488 × 10^6 |
Prime Factorization of 28405488
Prime Factorization 2 × 2 × 2 × 2 × 3 × 113 × 5237
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 3550686 | Product of the distinct prime numbers |
The prime factorization of 28405488 is 2 × 2 × 2 × 2 × 3 × 113 × 5237. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 28405488)
Multiplication
n×y| n×2 | 56810976 |
|---|---|
| n×3 | 85216464 |
| n×4 | 113621952 |
| n×5 | 142027440 |
Division
n÷y| n÷2 | 14202744 |
|---|---|
| n÷3 | 9468496 |
| n÷3 | 7101372 |
| n÷5 | 5681097.6 |
Exponentiation
ny| n2 | 806871748518144 |
|---|---|
| n3 | 2.2919585770071E+22 |
| n4 | 6.5104201855673E+29 |
| n5 | 1.8493166245609E+37 |
Nth Root
y√n| 2√n | 5329.679915342 |
|---|---|
| 3√n | 305.11771144009 |
| 4√n | 73.004656805864 |
| 5√n | 30.951410908005 |
Divisors of 28405488
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 | -28405487 | 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 28405488 can be divided by 40 positive divisors. The sum of these divisors (counting 28405488) is 1, the average is 0.025.
Base conversion 28405488
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1101100010110111011110000 |
| 3 | Ternary | 1222110011000010 |
| 4 | Quaternary | 1230112323300 |
| 5 | Quinary | 24232433423 |
| 6 | Senary | 2452454520 |
| 8 | Octal | 154267360 |
| 10 | Decimal | 28405488 |
| 12 | Duodecimal | 961a440 |
| 16 | Hexadecimal | 1b16ef0 |
| 20 | Vigesimal | 8hade8 |
| 36 | Base36 | gwttc |
Cryptographic Hash Functions
| md5 | a5f775b199f0b96036a4b1e8ab9dc67f |
|---|---|
| sha1 | ef65a7593fc6cad9a5b88c20af4e9fabbd2d617f |
| sha256 | d6ff36e016fa3a3c2d3379d72c5d926827afa353163e354db56e463f8edccc87 |
| sha512 | 80839f2c8c8cc8613715adf2da9d2947c8abe3674756bce9890b8d1c1adda18539e66581a107bad3751df63ca655d6cab8248cc771fd0d55ab7bae02baf3295f |
| ripemd-160 | bd3a1dd2867d599e4ac366a5be072c9f6de448fe |
28405488 as geometric shapes
Circle
Radius = n| Diameter | 56810976 |
|---|---|
| Circumference | 178476944.84487 |
| Area | 2.5348623575338E+15 |
Sphere
Radius = n| Volume | 9.6005336371436E+22 |
|---|---|
| Surface area | 1.0139449430135E+16 |
| Circumference | 178476944.84487 |
Square
Length = n| Perimeter | 113621952 |
|---|---|
| Area | 806871748518144 |
| Diagonal | 40171426.375426 |
Cube
Length = n| Surface area | 4841230491108864 |
|---|---|
| Volume | 2.2919585770071E+22 |
| Space diagonal | 49199748.429788 |
Equilateral Triangle
Length = n| Perimeter | 85216464 |
|---|---|
| Area | 3.4938571590634E+14 |
| Altitude | 24599874.214894 |
Triangular Pyramid
Length = n| Surface area | 3.4938571590634E+14 |
|---|---|
| Volume | 2.7010990866673E+21 |
| Height | 13390475.458475 |