21082890 (number)
21082890 is an even 8-digits composite number following 21082889 and preceding 21082891. In scientific notation, it is written as 2.1082890 × 10^7. The sum of its digits is 30. It has a total of 6 prime factors and 64 positive divisors. There are 5203968 positive integers (up to 21082890) that are relatively prime to 21082890.
Interesting facts
- 21082890 has 64 divisors, whose sum is 54463104
- The reverse of 21082890 is 09828012
- Previous prime number is 67
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 30
- Digital Root 3
Name
Name | twenty-one million eighty-two thousand eight hundred ninety |
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Notation
Scientific notation | 2.1082890 × 10^7 |
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Engineering notation | 2.1082890 × 10^6 |
Prime Factorization of 21082890
Prime Factorization 2 × 3 × 17 × 5 × 67 × 617
Composite numberω | Distinct Factors | 6 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 21082890 | Product of the distinct prime numbers |
The prime factorization of 21082890 is 2 × 3 × 17 × 5 × 67 × 617. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21082890)
Multiplication
n×yn×2 | 42165780 |
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n×3 | 63248670 |
n×4 | 84331560 |
n×5 | 105414450 |
Division
n÷yn÷2 | 10541445 |
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n÷3 | 7027630 |
n÷3 | 5270722.5 |
n÷5 | 4216578 |
Exponentiation
nyn2 | 444488250752100 |
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n3 | 9.3710968968989E+21 |
n4 | 1.9756980505666E+29 |
n5 | 4.165342467331E+36 |
Nth Root
y√n2√n | 4591.6108284566 |
---|---|
3√n | 276.25493667939 |
4√n | 67.761425814815 |
5√n | 29.15989988405 |
Divisors of 21082890
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 | -21082889 | 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 21082890 can be divided by 64 positive divisors. The sum of these divisors (counting 21082890) is 1, the average is 0.015625.
Base conversion 21082890
Base | System | Value |
---|---|---|
2 | Binary | 1010000011011001100001010 |
3 | Ternary | 1110200010021210 |
4 | Quaternary | 1100123030022 |
5 | Quinary | 20344123030 |
6 | Senary | 2031513550 |
8 | Octal | 120331412 |
10 | Decimal | 21082890 |
12 | Duodecimal | 70888b6 |
16 | Hexadecimal | 141b30a |
20 | Vigesimal | 6bf74a |
36 | Base36 | cjvnu |
Cryptographic Hash Functions
md5 | 6b37c5ce66ea3d1726c380ee061d7557 |
---|---|
sha1 | 492bac888ad892f85d8ecfd3ffd4f011d4421e14 |
sha256 | 131bd9055271fe04f0726f11aa1f8c613ab7debdd9d0ff367fdb4017b361ca6a |
sha512 | cea3a128693f3486f8fe6ecfe7c01ce3387092ff363cc2d16da6241e6e8e8534870c06550d08fe7f26ea92619e673559d154f9b25e4c2a8d6798e181041808f3 |
ripemd-160 | 6c4a47128ef7d04bff5536ada9856636cbf31b5d |
21082890 as geometric shapes
Circle
Radius = nDiameter | 42165780 |
---|---|
Circumference | 132467704.68088 |
Area | 1.3964010231698E+15 |
Sphere
Radius = nVolume | 3.9253558889834E+22 |
---|---|
Surface area | 5.5856040926791E+15 |
Circumference | 132467704.68088 |
Square
Length = nPerimeter | 84331560 |
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Area | 444488250752100 |
Diagonal | 29815708.97202 |
Cube
Length = nSurface area | 2666929504512600 |
---|---|
Volume | 9.3710968968989E+21 |
Space diagonal | 36516636.650386 |
Equilateral Triangle
Length = nPerimeter | 63248670 |
---|---|
Area | 1.9246905841751E+14 |
Altitude | 18258318.325193 |
Triangular Pyramid
Length = nSurface area | 1.9246905841751E+14 |
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Volume | 1.1043943604922E+21 |
Height | 9938569.65734 |