28291240 (number)
28291240 is an even 8-digits composite number following 28291239 and preceding 28291241. In scientific notation, it is written as 2.8291240 × 10^7. The sum of its digits is 28. It has a total of 8 prime factors and 40 positive divisors. There are 10926272 positive integers (up to 28291240) that are relatively prime to 28291240.
Interesting facts
- 28291240 has 40 divisors, whose sum is 65928690
- The reverse of 28291240 is 04219282
- Previous prime number is 29
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 28
- Digital Root 1
Name
| Name | twenty-eight million two hundred ninety-one thousand two hundred forty |
|---|
Notation
| Scientific notation | 2.8291240 × 10^7 |
|---|---|
| Engineering notation | 2.8291240 × 10^6 |
Prime Factorization of 28291240
Prime Factorization 2 × 2 × 2 × 5 × 29 × 29 × 29 × 29
Composite number| ω | Distinct Factors | 3 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 8 | Total number of prime factors |
| rad | Radical | 290 | Product of the distinct prime numbers |
The prime factorization of 28291240 is 2 × 2 × 2 × 5 × 29 × 29 × 29 × 29. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 28291240)
Multiplication
n×y| n×2 | 56582480 |
|---|---|
| n×3 | 84873720 |
| n×4 | 113164960 |
| n×5 | 141456200 |
Division
n÷y| n÷2 | 14145620 |
|---|---|
| n÷3 | 9430413.3333333 |
| n÷3 | 7072810 |
| n÷5 | 5658248 |
Exponentiation
ny| n2 | 800394260737600 |
|---|---|
| n3 | 2.264414612515E+22 |
| n4 | 6.4063097262169E+29 |
| n5 | 1.8124244597874E+37 |
Nth Root
y√n| 2√n | 5318.9510244032 |
|---|---|
| 3√n | 304.70809660459 |
| 4√n | 72.93113892161 |
| 5√n | 30.926473194885 |
Divisors of 28291240
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 | -28291239 | 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 28291240 can be divided by 40 positive divisors. The sum of these divisors (counting 28291240) is 1, the average is 0.025.
Base conversion 28291240
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1101011111011000010101000 |
| 3 | Ternary | 1222020100021201 |
| 4 | Quaternary | 1223323002220 |
| 5 | Quinary | 24220304430 |
| 6 | Senary | 2450213544 |
| 8 | Octal | 153730250 |
| 10 | Decimal | 28291240 |
| 12 | Duodecimal | 95842b4 |
| 16 | Hexadecimal | 1afb0a8 |
| 20 | Vigesimal | 8gg820 |
| 36 | Base36 | gudns |
Cryptographic Hash Functions
| md5 | 982be5e8ff5d1c7564a9042a4890b96c |
|---|---|
| sha1 | eb1dffb306ac4e808448987a92d5e68a83904329 |
| sha256 | bec9fcbc58eb9c600dd7978f02f88f45e1659651721e44e25c478388b3e3cec7 |
| sha512 | b0d1b37c6f74c65b5b7b31b3219a023c7408b2cd1164217b4aff1d846bbd6b3d0b66d41b81d94e0b8b006ee0c4490b94fcf575d97534708f1d558932939aa924 |
| ripemd-160 | 937991bca8dea1a87e75592627b3f1051b5c186a |
28291240 as geometric shapes
Circle
Radius = n| Diameter | 56582480 |
|---|---|
| Circumference | 177759103.48989 |
| Area | 2.5145127295087E+15 |
Sphere
Radius = n| Volume | 9.485157748478E+22 |
|---|---|
| Surface area | 1.0058050918035E+16 |
| Circumference | 177759103.48989 |
Square
Length = n| Perimeter | 113164960 |
|---|---|
| Area | 800394260737600 |
| Diagonal | 40009855.304352 |
Cube
Length = n| Surface area | 4802365564425600 |
|---|---|
| Volume | 2.264414612515E+22 |
| Space diagonal | 49001865.089125 |
Equilateral Triangle
Length = n| Perimeter | 84873720 |
|---|---|
| Area | 3.4658088142101E+14 |
| Altitude | 24500932.544562 |
Triangular Pyramid
Length = n| Surface area | 3.4658088142101E+14 |
|---|---|
| Volume | 2.6686382132121E+21 |
| Height | 13336618.434784 |