18993840 (number)
18993840 is an even 8-digits composite number following 18993839 and preceding 18993841. In scientific notation, it is written as 1.8993840 × 10^7. The sum of its digits is 42. It has a total of 7 prime factors and 40 positive divisors. There are 4888576 positive integers (up to 18993840) that are relatively prime to 18993840.
Interesting facts
- 18993840 has 40 divisors, whose sum is 40622400
- The reverse of 18993840 is 04839981
- Previous prime number is 29
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 42
- Digital Root 6
Name
| Name | eighteen million nine hundred ninety-three thousand eight hundred forty |
|---|
Notation
| Scientific notation | 1.8993840 × 10^7 |
|---|---|
| Engineering notation | 1.8993840 × 10^6 |
Prime Factorization of 18993840
Prime Factorization 2 × 2 × 2 × 2 × 15 × 29 × 2729
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2374230 | Product of the distinct prime numbers |
The prime factorization of 18993840 is 2 × 2 × 2 × 2 × 15 × 29 × 2729. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 18993840)
Multiplication
n×y| n×2 | 37987680 |
|---|---|
| n×3 | 56981520 |
| n×4 | 75975360 |
| n×5 | 94969200 |
Division
n÷y| n÷2 | 9496920 |
|---|---|
| n÷3 | 6331280 |
| n÷3 | 4748460 |
| n÷5 | 3798768 |
Exponentiation
ny| n2 | 360765957945600 |
|---|---|
| n3 | 6.8523308826655E+21 |
| n4 | 1.3015207641241E+29 |
| n5 | 2.472087715045E+36 |
Nth Root
y√n| 2√n | 4358.1922857992 |
|---|---|
| 3√n | 266.81132429173 |
| 4√n | 66.016606136632 |
| 5√n | 28.557655815325 |
Divisors of 18993840
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 | -18993839 | 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 18993840 can be divided by 40 positive divisors. The sum of these divisors (counting 18993840) is 1, the average is 0.025.
Base conversion 18993840
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1001000011101001010110000 |
| 3 | Ternary | 1022201222122120 |
| 4 | Quaternary | 1020131022300 |
| 5 | Quinary | 14330300330 |
| 6 | Senary | 1515034240 |
| 8 | Octal | 110351260 |
| 10 | Decimal | 18993840 |
| 12 | Duodecimal | 643b980 |
| 16 | Hexadecimal | 121d2b0 |
| 20 | Vigesimal | 5ie4c0 |
| 36 | Base36 | bb3qo |
Cryptographic Hash Functions
| md5 | 1ecc160374d86e87fc7ad67e81b49b68 |
|---|---|
| sha1 | f489e06d5dd1ddf14c69c44e5ff5715ac49d9688 |
| sha256 | 53ac7de36a75c2bdb871c5c76c8509580f09996f55c2e6986fe7206faedbd69c |
| sha512 | d1394716d16abba4a6273ee21097cdfeed9478ab9cea75577c4c8dae5ec297743a356a160126f51c04f55e19db405dd1d47b652caf52eeb8a7cefd6fe2d39b06 |
| ripemd-160 | 73b20dc31fe24fcad75aef01946ed6c38355ac6a |
18993840 as geometric shapes
Circle
Radius = n| Diameter | 37987680 |
|---|---|
| Circumference | 119341816.41492 |
| Area | 1.1333796831472E+15 |
Sphere
Radius = n| Volume | 2.8702976481264E+22 |
|---|---|
| Surface area | 4.5335187325887E+15 |
| Circumference | 119341816.41492 |
Square
Length = n| Perimeter | 75975360 |
|---|---|
| Area | 360765957945600 |
| Diagonal | 26861346.129545 |
Cube
Length = n| Surface area | 2164595747673600 |
|---|---|
| Volume | 6.8523308826655E+21 |
| Space diagonal | 32898295.910834 |
Equilateral Triangle
Length = n| Perimeter | 56981520 |
|---|---|
| Area | 1.5621624220076E+14 |
| Altitude | 16449147.955417 |
Triangular Pyramid
Length = n| Surface area | 1.5621624220076E+14 |
|---|---|
| Volume | 8.0755493901112E+20 |
| Height | 8953782.0431815 |