28491312 (number)
28491312 is an even 8-digits composite number following 28491311 and preceding 28491313. In scientific notation, it is written as 2.8491312 × 10^7. The sum of its digits is 30. It has a total of 7 prime factors and 40 positive divisors. There are 9472320 positive integers (up to 28491312) that are relatively prime to 28491312.
Interesting facts
- 28491312 has 40 divisors, whose sum is 73794880
- The reverse of 28491312 is 21319482
- Previous prime number is 691
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 30
- Digital Root 3
Name
| Name | twenty-eight million four hundred ninety-one thousand three hundred twelve |
|---|
Notation
| Scientific notation | 2.8491312 × 10^7 |
|---|---|
| Engineering notation | 2.8491312 × 10^6 |
Prime Factorization of 28491312
Prime Factorization 2 × 2 × 2 × 2 × 3 × 691 × 859
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 3561414 | Product of the distinct prime numbers |
The prime factorization of 28491312 is 2 × 2 × 2 × 2 × 3 × 691 × 859. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 28491312)
Multiplication
n×y| n×2 | 56982624 |
|---|---|
| n×3 | 85473936 |
| n×4 | 113965248 |
| n×5 | 142456560 |
Division
n÷y| n÷2 | 14245656 |
|---|---|
| n÷3 | 9497104 |
| n÷3 | 7122828 |
| n÷5 | 5698262.4 |
Exponentiation
ny| n2 | 811754859481344 |
|---|---|
| n3 | 2.3127960968999E+22 |
| n4 | 6.5894595189158E+29 |
| n5 | 1.877423470648E+37 |
Nth Root
y√n| 2√n | 5337.7253582402 |
|---|---|
| 3√n | 305.42469546999 |
| 4√n | 73.059738284777 |
| 5√n | 30.970091589167 |
Divisors of 28491312
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 | -28491311 | 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 28491312 can be divided by 40 positive divisors. The sum of these divisors (counting 28491312) is 1, the average is 0.025.
Base conversion 28491312
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1101100101011111000110000 |
| 3 | Ternary | 1222121111201210 |
| 4 | Quaternary | 1230223320300 |
| 5 | Quinary | 24243210222 |
| 6 | Senary | 2454400120 |
| 8 | Octal | 154537060 |
| 10 | Decimal | 28491312 |
| 12 | Duodecimal | 9660040 |
| 16 | Hexadecimal | 1b2be30 |
| 20 | Vigesimal | 8i185c |
| 36 | Base36 | gyo1c |
Cryptographic Hash Functions
| md5 | de428f5f76a3a575ce60d09d2a47e9fb |
|---|---|
| sha1 | 6580a88dfc6d85518214336d9fe2898a4bf3b278 |
| sha256 | 9ea67af1e108503ea4b194a2c3e28d1807fa9533d6ea02f45a646f271b87a2e9 |
| sha512 | 0d6e8e26f9a9207e4d574dd36ef6e15659f1487ebe668df9ed6ede425b9f1dc1d0e7094c136ca975e9bab1112435ca7e4a2acaaea7698213fdba056ca6820414 |
| ripemd-160 | 381e67908a4e1f71ade3be5cd7b421b562123ad6 |
28491312 as geometric shapes
Circle
Radius = n| Diameter | 56982624 |
|---|---|
| Circumference | 179016192.94067 |
| Area | 2.5502031030624E+15 |
Sphere
Radius = n| Volume | 9.6878176363626E+22 |
|---|---|
| Surface area | 1.020081241225E+16 |
| Circumference | 179016192.94067 |
Square
Length = n| Perimeter | 113965248 |
|---|---|
| Area | 811754859481344 |
| Diagonal | 40292799.840203 |
Cube
Length = n| Surface area | 4870529156888064 |
|---|---|
| Volume | 2.3127960968999E+22 |
| Space diagonal | 49348399.958297 |
Equilateral Triangle
Length = n| Perimeter | 85473936 |
|---|---|
| Area | 3.5150016497816E+14 |
| Altitude | 24674199.979148 |
Triangular Pyramid
Length = n| Surface area | 3.5150016497816E+14 |
|---|---|
| Volume | 2.7256563393662E+21 |
| Height | 13430933.280068 |