21009618 (number)
21009618 is an even 8-digits composite number following 21009617 and preceding 21009619. In scientific notation, it is written as 2.1009618 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 64 positive divisors. There are 5909760 positive integers (up to 21009618) that are relatively prime to 21009618.
Interesting facts
- 21009618 has 64 divisors, whose sum is 50577408
- The reverse of 21009618 is 81690012
- Previous prime number is 191
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
Name | twenty-one million nine thousand six hundred eighteen |
---|
Notation
Scientific notation | 2.1009618 × 10^7 |
---|---|
Engineering notation | 2.1009618 × 10^6 |
Prime Factorization of 21009618
Prime Factorization 2 × 27 × 3 × 7 × 191 × 97
Composite numberω | Distinct Factors | 6 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 21009618 | Product of the distinct prime numbers |
The prime factorization of 21009618 is 2 × 27 × 3 × 7 × 191 × 97. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21009618)
Multiplication
n×yn×2 | 42019236 |
---|---|
n×3 | 63028854 |
n×4 | 84038472 |
n×5 | 105048090 |
Division
n÷yn÷2 | 10504809 |
---|---|
n÷3 | 7003206 |
n÷3 | 5252404.5 |
n÷5 | 4201923.6 |
Exponentiation
nyn2 | 441404048505924 |
---|---|
n3 | 9.2737304427629E+21 |
n4 | 1.9483753403742E+29 |
n5 | 4.0934621621882E+36 |
Nth Root
y√n2√n | 4583.6249846601 |
---|---|
3√n | 275.93453078525 |
4√n | 67.702473992167 |
5√n | 29.139603040154 |
Divisors of 21009618
64 divisors
τ | Total Divisors | 64 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21009617 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.015625 | 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 | 64 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21009618 can be divided by 64 positive divisors. The sum of these divisors (counting 21009618) is 1, the average is 0.015625.
Base conversion 21009618
Base | System | Value |
---|---|---|
2 | Binary | 1010000001001010011010010 |
3 | Ternary | 1110112101210000 |
4 | Quaternary | 1100021103102 |
5 | Quinary | 20334301433 |
6 | Senary | 2030150430 |
8 | Octal | 120112322 |
10 | Decimal | 21009618 |
12 | Duodecimal | 7052416 |
16 | Hexadecimal | 14094d2 |
20 | Vigesimal | 6b640i |
36 | Base36 | cib4i |
Cryptographic Hash Functions
md5 | 692c06e1421c212861ff091e2c353707 |
---|---|
sha1 | f2c7d022a6cc18ce23b6f603310a270e3cdc735f |
sha256 | 8874877f4002fdb59c5c13a64a1a72ac211bddb4ebebe55b37a249cd6e0eed28 |
sha512 | e9a11250914dfaba29164a5f87217f33667e6ed552373485fa080f09dc51846c5217c54dfe8e648a8ca408fd2d1db5241d514d14aa9fe4df594262dcdae3064f |
ripemd-160 | da03b47258be32a7edaab1dbf27bb6bfede1ccc2 |
21009618 as geometric shapes
Circle
Radius = nDiameter | 42019236 |
---|---|
Circumference | 132007323.12706 |
Area | 1.386711716051E+15 |
Sphere
Radius = nVolume | 3.8845711240475E+22 |
---|---|
Surface area | 5.546846864204E+15 |
Circumference | 132007323.12706 |
Square
Length = nPerimeter | 84038472 |
---|---|
Area | 441404048505924 |
Diagonal | 29712086.715878 |
Cube
Length = nSurface area | 2648424291035544 |
---|---|
Volume | 9.2737304427629E+21 |
Space diagonal | 36389725.823614 |
Equilateral Triangle
Length = nPerimeter | 63028854 |
---|---|
Area | 1.9113355966971E+14 |
Altitude | 18194862.911807 |
Triangular Pyramid
Length = nSurface area | 1.9113355966971E+14 |
---|---|
Volume | 1.092919613829E+21 |
Height | 9904028.9052926 |