21461840 (number)
21461840 is an even 8-digits composite number following 21461839 and preceding 21461841. In scientific notation, it is written as 2.1461840 × 10^7. The sum of its digits is 26. It has a total of 7 prime factors and 40 positive divisors. There are 8437376 positive integers (up to 21461840) that are relatively prime to 21461840.
Interesting facts
- 21461840 has 40 divisors, whose sum is 50755680
- The reverse of 21461840 is 04816412
- Previous prime number is 59
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 26
- Digital Root 8
Name
| Name | twenty-one million four hundred sixty-one thousand eight hundred forty |
|---|
Notation
| Scientific notation | 2.1461840 × 10^7 |
|---|---|
| Engineering notation | 2.1461840 × 10^6 |
Prime Factorization of 21461840
Prime Factorization 2 × 2 × 2 × 2 × 5 × 59 × 4547
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2682730 | Product of the distinct prime numbers |
The prime factorization of 21461840 is 2 × 2 × 2 × 2 × 5 × 59 × 4547. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21461840)
Multiplication
n×y| n×2 | 42923680 |
|---|---|
| n×3 | 64385520 |
| n×4 | 85847360 |
| n×5 | 107309200 |
Division
n÷y| n÷2 | 10730920 |
|---|---|
| n÷3 | 7153946.6666667 |
| n÷3 | 5365460 |
| n÷5 | 4292368 |
Exponentiation
ny| n2 | 460610576185600 |
|---|---|
| n3 | 9.8855504884032E+21 |
| n4 | 2.1216210289403E+29 |
| n5 | 4.5533891063752E+36 |
Nth Root
y√n| 2√n | 4632.6925216336 |
|---|---|
| 3√n | 277.90027995282 |
| 4√n | 68.063885590184 |
| 5√n | 29.263979949263 |
Divisors of 21461840
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 | -21461839 | 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 21461840 can be divided by 40 positive divisors. The sum of these divisors (counting 21461840) is 1, the average is 0.025.
Base conversion 21461840
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010001110111101101010000 |
| 3 | Ternary | 1111101101002222 |
| 4 | Quaternary | 1101313231100 |
| 5 | Quinary | 20443234330 |
| 6 | Senary | 2044000212 |
| 8 | Octal | 121675520 |
| 10 | Decimal | 21461840 |
| 12 | Duodecimal | 7230068 |
| 16 | Hexadecimal | 1477b50 |
| 20 | Vigesimal | 6e2ec0 |
| 36 | Base36 | cs028 |
Cryptographic Hash Functions
| md5 | bf3d5a89e2cc14b688250f6d8f3c7d44 |
|---|---|
| sha1 | 5d545a945fbb740ad83735a12bd3bbd291ebe36d |
| sha256 | e2afae2962fe7d5be4fe7640b2f2c9c8ccc09e1606bf69836e94a1cba16139d8 |
| sha512 | 468e1bf94b4cbf227a4b3200102763e6d253686c222ba60499e14e1c19b00c6c96884dfcd2f6c95af7c1a78a6f7187acb921a710297c1adbbbc667b4384add1b |
| ripemd-160 | 3024cc3890c38d78527ea508f8fed656e5e48dc9 |
21461840 as geometric shapes
Circle
Radius = n| Diameter | 42923680 |
|---|---|
| Circumference | 134848717.75304 |
| Area | 1.4470508023104E+15 |
Sphere
Radius = n| Volume | 4.1408497054744E+22 |
|---|---|
| Surface area | 5.7882032092418E+15 |
| Circumference | 134848717.75304 |
Square
Length = n| Perimeter | 85847360 |
|---|---|
| Area | 460610576185600 |
| Diagonal | 30351625.201481 |
Cube
Length = n| Surface area | 2763663457113600 |
|---|---|
| Volume | 9.8855504884032E+21 |
| Space diagonal | 37172997.303914 |
Equilateral Triangle
Length = n| Perimeter | 64385520 |
|---|---|
| Area | 1.9945023011426E+14 |
| Altitude | 18586498.651957 |
Triangular Pyramid
Length = n| Surface area | 1.9945023011426E+14 |
|---|---|
| Volume | 1.1650232976853E+21 |
| Height | 10117208.400494 |