28291312 (number)
28291312 is an even 8-digits composite number following 28291311 and preceding 28291313. In scientific notation, it is written as 2.8291312 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 40 positive divisors. There are 11520000 positive integers (up to 28291312) that are relatively prime to 28291312.
Interesting facts
- 28291312 has 40 divisors, whose sum is 56460672
- The reverse of 28291312 is 21319282
- Previous prime number is 61
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 three hundred twelve |
|---|
Notation
| Scientific notation | 2.8291312 × 10^7 |
|---|---|
| Engineering notation | 2.8291312 × 10^6 |
Prime Factorization of 28291312
Prime Factorization 2 × 2 × 2 × 2 × 287 × 61 × 101
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 3536414 | Product of the distinct prime numbers |
The prime factorization of 28291312 is 2 × 2 × 2 × 2 × 287 × 61 × 101. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 28291312)
Multiplication
n×y| n×2 | 56582624 |
|---|---|
| n×3 | 84873936 |
| n×4 | 113165248 |
| n×5 | 141456560 |
Division
n÷y| n÷2 | 14145656 |
|---|---|
| n÷3 | 9430437.3333333 |
| n÷3 | 7072828 |
| n÷5 | 5658262.4 |
Exponentiation
ny| n2 | 800398334681344 |
|---|---|
| n3 | 2.264431901075E+22 |
| n4 | 6.4063749416067E+29 |
| n5 | 1.8124475226198E+37 |
Nth Root
y√n| 2√n | 5318.9577926507 |
|---|---|
| 3√n | 304.70835509408 |
| 4√n | 72.931185323226 |
| 5√n | 30.92648893618 |
Divisors of 28291312
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 | -28291311 | 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 28291312 can be divided by 40 positive divisors. The sum of these divisors (counting 28291312) is 1, the average is 0.025.
Base conversion 28291312
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1101011111011000011110000 |
| 3 | Ternary | 1222020100101101 |
| 4 | Quaternary | 1223323003300 |
| 5 | Quinary | 24220310222 |
| 6 | Senary | 2450214144 |
| 8 | Octal | 153730360 |
| 10 | Decimal | 28291312 |
| 12 | Duodecimal | 9584354 |
| 16 | Hexadecimal | 1afb0f0 |
| 20 | Vigesimal | 8gg85c |
| 36 | Base36 | gudps |
Cryptographic Hash Functions
| md5 | 183190361636a5d1a3f51f72e44f02d5 |
|---|---|
| sha1 | 9047de5be1cdf51dd039bc195b83091877d5532f |
| sha256 | 7629b22cead68c5e71e204d71cd1735ac1a268024c74af042585129e2d3a301c |
| sha512 | ecf31d5d09dd9781b5de2a371bf952631488d591c78ffd3dc0bc3974f3b75b76cabfaa542f32eab9c10a283eb789acbde896d145ccbdc50918da2381f9cc155e |
| ripemd-160 | f2ffc1574a87203ce9f5ee6dca8783425297859f |
28291312 as geometric shapes
Circle
Radius = n| Diameter | 56582624 |
|---|---|
| Circumference | 177759555.87923 |
| Area | 2.5145255281804E+15 |
Sphere
Radius = n| Volume | 9.4852301666289E+22 |
|---|---|
| Surface area | 1.0058102112722E+16 |
| Circumference | 177759555.87923 |
Square
Length = n| Perimeter | 113165248 |
|---|---|
| Area | 800398334681344 |
| Diagonal | 40009957.127729 |
Cube
Length = n| Surface area | 4802390008088064 |
|---|---|
| Volume | 2.264431901075E+22 |
| Space diagonal | 49001989.796783 |
Equilateral Triangle
Length = n| Perimeter | 84873936 |
|---|---|
| Area | 3.465826454904E+14 |
| Altitude | 24500994.898392 |
Triangular Pyramid
Length = n| Surface area | 3.465826454904E+14 |
|---|---|
| Volume | 2.6686585879755E+21 |
| Height | 13336652.37591 |