821000728 (number)
821000728 is an even 9-digits composite number following 821000727 and preceding 821000729. In scientific notation, it is written as 8.21000728 × 10^8. The sum of its digits is 28. It has a total of 6 prime factors and 32 positive divisors. There are 391572480 positive integers (up to 821000728) that are relatively prime to 821000728.
Interesting facts
- 821000728 has 32 divisors, whose sum is 1587600000
- The reverse of 821000728 is 827000128
- Previous prime number is 149
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 28
- Digital Root 1
Name
Name | eight hundred twenty-one million seven hundred twenty-eight |
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Notation
Scientific notation | 8.21000728 × 10^8 |
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Engineering notation | 8.21000728 × 10^6 |
Prime Factorization of 821000728
Prime Factorization 2 × 2 × 2 × 16799 × 149 × 41
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 205250182 | Product of the distinct prime numbers |
The prime factorization of 821000728 is 2 × 2 × 2 × 16799 × 149 × 41. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 821000728)
Multiplication
n×yn×2 | 1642001456 |
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n×3 | 2463002184 |
n×4 | 3284002912 |
n×5 | 4105003640 |
Division
n÷yn÷2 | 410500364 |
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n÷3 | 273666909.33333 |
n÷3 | 205250182 |
n÷5 | 164200145.6 |
Exponentiation
nyn2 | 674042195376529984 |
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n3 | 5.5338913310685E+26 |
n4 | 4.5433288114801E+35 |
n5 | 3.7300762617686E+44 |
Nth Root
y√n2√n | 28653.110267474 |
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3√n | 936.37076832358 |
4√n | 169.27229621965 |
5√n | 60.655293486301 |
Divisors of 821000728
32 divisors
τ | Total Divisors | 32 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -821000727 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.03125 | 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 | 32 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 821000728 can be divided by 32 positive divisors. The sum of these divisors (counting 821000728) is 1, the average is 0.03125.
Base conversion 821000728
Base | System | Value |
---|---|---|
2 | Binary | 110000111011110111101000011000 |
3 | Ternary | 2010012212011021101 |
4 | Quaternary | 300323313220120 |
5 | Quinary | 3140134010403 |
6 | Senary | 213244521144 |
8 | Octal | 6073675030 |
10 | Decimal | 821000728 |
12 | Duodecimal | 1aab501b4 |
16 | Hexadecimal | 30ef7a18 |
20 | Vigesimal | cgb51g8 |
36 | Base36 | dksw7s |
Cryptographic Hash Functions
md5 | e59d946c7b2677702027f2a02b78d799 |
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sha1 | 1846b5438ef8987d22726725e5926131492bfb44 |
sha256 | 2db7c68b2c90f4ae575645179a01fbb61b163c2e585abcfa8023924e82f89c86 |
sha512 | 2745fab9c9cdfcc58d975c12b2ea9266589318d1672510f99862a970498e45bd9265ca90904befe7e5c1b086ac5d27d4e111b63c45ba8f92b9ea73f46e8e78a5 |
ripemd-160 | dc1d7e947e82ace1c93e97709c0b61ce577bd035 |
821000728 as geometric shapes
Circle
Radius = nDiameter | 1642001456 |
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Circumference | 5158499711.3533 |
Area | 2.1175660092044E+18 |
Sphere
Radius = nVolume | 2.3180309801932E+27 |
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Surface area | 8.4702640368178E+18 |
Circumference | 5158499711.3533 |
Square
Length = nPerimeter | 3284002912 |
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Area | 674042195376529984 |
Diagonal | 1161070364.2558 |
Cube
Length = nSurface area | 4044253172259179904 |
---|---|
Volume | 5.5338913310685E+26 |
Space diagonal | 1422014973.947 |
Equilateral Triangle
Length = nPerimeter | 2463002184 |
---|---|
Area | 2.9186883220935E+17 |
Altitude | 711007486.97352 |
Triangular Pyramid
Length = nSurface area | 2.9186883220935E+17 |
---|---|
Volume | 6.52175347758E+25 |
Height | 387023454.75193 |