21082788 (number)
21082788 is an even 8-digits composite number following 21082787 and preceding 21082789. In scientific notation, it is written as 2.1082788 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 48 positive divisors. There are 6613632 positive integers (up to 21082788) that are relatively prime to 21082788.
Interesting facts
- 21082788 has 48 divisors, whose sum is 57879360
- The reverse of 21082788 is 88728012
- Previous prime number is 17
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 36
- Digital Root 9
Name
Name | twenty-one million eighty-two thousand seven hundred eighty-eight |
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Notation
Scientific notation | 2.1082788 × 10^7 |
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Engineering notation | 2.1082788 × 10^6 |
Prime Factorization of 21082788
Prime Factorization 2 × 2 × 9 × 3 × 17 × 11483
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 10541394 | Product of the distinct prime numbers |
The prime factorization of 21082788 is 2 × 2 × 9 × 3 × 17 × 11483. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21082788)
Multiplication
n×yn×2 | 42165576 |
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n×3 | 63248364 |
n×4 | 84331152 |
n×5 | 105413940 |
Division
n÷yn÷2 | 10541394 |
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n÷3 | 7027596 |
n÷3 | 5270697 |
n÷5 | 4216557.6 |
Exponentiation
nyn2 | 444483949852944 |
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n3 | 9.3709608841522E+21 |
n4 | 1.9756598167687E+29 |
n5 | 4.1652417077054E+36 |
Nth Root
y√n2√n | 4591.5997212301 |
---|---|
3√n | 276.25449116727 |
4√n | 67.761343856435 |
5√n | 29.159871668606 |
Divisors of 21082788
48 divisors
τ | Total Divisors | 48 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21082787 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.020833333333333 | 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 | 48 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21082788 can be divided by 48 positive divisors. The sum of these divisors (counting 21082788) is 1, the average is 0.020833333333333.
Base conversion 21082788
Base | System | Value |
---|---|---|
2 | Binary | 1010000011011001010100100 |
3 | Ternary | 1110200010011000 |
4 | Quaternary | 1100123022210 |
5 | Quinary | 20344122123 |
6 | Senary | 2031513300 |
8 | Octal | 120331244 |
10 | Decimal | 21082788 |
12 | Duodecimal | 7088830 |
16 | Hexadecimal | 141b2a4 |
20 | Vigesimal | 6bf6j8 |
36 | Base36 | cjvl0 |
Cryptographic Hash Functions
md5 | 0281e985a8fa8404fddb3686c2915a29 |
---|---|
sha1 | a3658f1b1f2a150ec9547e416a8c220463d70d69 |
sha256 | 05bd9140a4ac785d6f39926018ae56e17a82daac3fecd0a1c3f2fcdc3ba4cff1 |
sha512 | d04168e8a0036e04811520c4f6924aa9da59791671d62c84f15b445798fb204ee108f5aa630132e9bca1b38d9f4e5b3b9a72766348fcda097b8752f3e262c278 |
ripemd-160 | e4391e1dc2fd4deeea2e63a5d63e69cdb9141b68 |
21082788 as geometric shapes
Circle
Radius = nDiameter | 42165576 |
---|---|
Circumference | 132467063.79598 |
Area | 1.3963875114966E+15 |
Sphere
Radius = nVolume | 3.9252989160973E+22 |
---|---|
Surface area | 5.5855500459863E+15 |
Circumference | 132467063.79598 |
Square
Length = nPerimeter | 84331152 |
---|---|
Area | 444483949852944 |
Diagonal | 29815564.722237 |
Cube
Length = nSurface area | 2666903699117664 |
---|---|
Volume | 9.3709608841522E+21 |
Space diagonal | 36516459.981203 |
Equilateral Triangle
Length = nPerimeter | 63248364 |
---|---|
Area | 1.9246719607355E+14 |
Altitude | 18258229.990602 |
Triangular Pyramid
Length = nSurface area | 1.9246719607355E+14 |
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Volume | 1.1043783312363E+21 |
Height | 9938521.5740789 |