20487984 (number)
20487984 is an even 8-digits composite number following 20487983 and preceding 20487985. In scientific notation, it is written as 2.0487984 × 10^7. The sum of its digits is 42. It has a total of 7 prime factors and 40 positive divisors. There are 6208320 positive integers (up to 20487984) that are relatively prime to 20487984.
Interesting facts
- 20487984 has 40 divisors, whose sum is 57740352
- The reverse of 20487984 is 48978402
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 42
- Digital Root 6
Name
| Name | twenty million four hundred eighty-seven thousand nine hundred eighty-four |
|---|
Notation
| Scientific notation | 2.0487984 × 10^7 |
|---|---|
| Engineering notation | 2.0487984 × 10^6 |
Prime Factorization of 20487984
Prime Factorization 2 × 2 × 2 × 2 × 3 × 11 × 38803
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2560998 | Product of the distinct prime numbers |
The prime factorization of 20487984 is 2 × 2 × 2 × 2 × 3 × 11 × 38803. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20487984)
Multiplication
n×y| n×2 | 40975968 |
|---|---|
| n×3 | 61463952 |
| n×4 | 81951936 |
| n×5 | 102439920 |
Division
n÷y| n÷2 | 10243992 |
|---|---|
| n÷3 | 6829328 |
| n÷3 | 5121996 |
| n÷5 | 4097596.8 |
Exponentiation
ny| n2 | 419757488384256 |
|---|---|
| n3 | 8.5999847058968E+21 |
| n4 | 1.7619634905466E+29 |
| n5 | 3.6099079802903E+36 |
Nth Root
y√n| 2√n | 4526.3654293484 |
|---|---|
| 3√n | 273.63170009909 |
| 4√n | 67.278268626269 |
| 5√n | 28.993446601284 |
Divisors of 20487984
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 | -20487983 | 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 20487984 can be divided by 40 positive divisors. The sum of these divisors (counting 20487984) is 1, the average is 0.025.
Base conversion 20487984
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1001110001001111100110000 |
| 3 | Ternary | 1102112220020020 |
| 4 | Quaternary | 1032021330300 |
| 5 | Quinary | 20221103414 |
| 6 | Senary | 2011043440 |
| 8 | Octal | 116117460 |
| 10 | Decimal | 20487984 |
| 12 | Duodecimal | 6a40580 |
| 16 | Hexadecimal | 1389f30 |
| 20 | Vigesimal | 680jj4 |
| 36 | Base36 | c74mo |
Cryptographic Hash Functions
| md5 | 4f58eacadb2664eb2cef2f49c8c4dece |
|---|---|
| sha1 | 41868e9b1887d1708315d0ee3f076324e13a62e2 |
| sha256 | c9616d962eff748804f58b217d4cba1d1ccc08ee136f8708d1f0994e0d824df7 |
| sha512 | 05ee406c29374e3dc609dc585a118bd9e3bd3fc717a7ca469e5e0812ecfd345be331dfa0eda9689f865d65876e84fbadcd4ef4fbb333a1b80c87a4733a3fde67 |
| ripemd-160 | 205912d5fd429dfc4709ae6769bd167478408932 |
20487984 as geometric shapes
Circle
Radius = n| Diameter | 40975968 |
|---|---|
| Circumference | 128729800.04253 |
| Area | 1.3187070417973E+15 |
Sphere
Radius = n| Volume | 3.6023531697373E+22 |
|---|---|
| Surface area | 5.2748281671891E+15 |
| Circumference | 128729800.04253 |
Square
Length = n| Perimeter | 81951936 |
|---|---|
| Area | 419757488384256 |
| Diagonal | 28974384.838483 |
Cube
Length = n| Surface area | 2518544930305536 |
|---|---|
| Volume | 8.5999847058968E+21 |
| Space diagonal | 35486229.232658 |
Equilateral Triangle
Length = n| Perimeter | 61463952 |
|---|---|
| Area | 1.8176032418476E+14 |
| Altitude | 17743114.616329 |
Triangular Pyramid
Length = n| Surface area | 1.8176032418476E+14 |
|---|---|
| Volume | 1.0135179172734E+21 |
| Height | 9658128.2794943 |