638479920 (number)
638479920 is an even 9-digits composite number following 638479919 and preceding 638479921. In scientific notation, it is written as 6.38479920 × 10^8. The sum of its digits is 48. It has a total of 7 prime factors and 40 positive divisors. There are 157163520 positive integers (up to 638479920) that are relatively prime to 638479920.
Interesting facts
- 638479920 has 40 divisors, whose sum is 1421034048
- The reverse of 638479920 is 029974836
- Previous prime number is 13
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 48
- Digital Root 3
Name
Name | six hundred thirty-eight million four hundred seventy-nine thousand nine hundred twenty |
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Notation
Scientific notation | 6.38479920 × 10^8 |
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Engineering notation | 6.38479920 × 10^6 |
Prime Factorization of 638479920
Prime Factorization 2 × 2 × 2 × 2 × 15 × 13 × 204641
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 79809990 | Product of the distinct prime numbers |
The prime factorization of 638479920 is 2 × 2 × 2 × 2 × 15 × 13 × 204641. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 638479920)
Multiplication
n×yn×2 | 1276959840 |
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n×3 | 1915439760 |
n×4 | 2553919680 |
n×5 | 3192399600 |
Division
n÷yn÷2 | 319239960 |
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n÷3 | 212826640 |
n÷3 | 159619980 |
n÷5 | 127695984 |
Exponentiation
nyn2 | 407656608243206400 |
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n3 | 2.6028055861859E+26 |
n4 | 1.6618391024436E+35 |
n5 | 1.061050897181E+44 |
Nth Root
y√n2√n | 25268.16020212 |
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3√n | 861.09106157812 |
4√n | 158.95961814914 |
5√n | 57.680557414726 |
Divisors of 638479920
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 | -638479919 | 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 638479920 can be divided by 40 positive divisors. The sum of these divisors (counting 638479920) is 1, the average is 0.025.
Base conversion 638479920
Base | System | Value |
---|---|---|
2 | Binary | 100110000011100110111000110000 |
3 | Ternary | 1122111102010210110 |
4 | Quaternary | 212003212320300 |
5 | Quinary | 2301422324140 |
6 | Senary | 143204501320 |
8 | Octal | 4603467060 |
10 | Decimal | 638479920 |
12 | Duodecimal | 1599aa840 |
16 | Hexadecimal | 260e6e30 |
20 | Vigesimal | 9ja9jg0 |
36 | Base36 | ak4u9c |
Cryptographic Hash Functions
md5 | fa4a10d81fc46cdc77e5af19d4f1f2ef |
---|---|
sha1 | cf0edb735a53a1634719fc0c9dda29f3354fb4b0 |
sha256 | 82cb71248b893c1caea2916e18ecf1ca1fb9f0ab2d676f55881ae01af0601b85 |
sha512 | 053fec90f5ec0dd92b8a1b945c486a897dd00a71ed769147e2b281a20af4bd0a8edd08655c55e9b2bb1dfa71a3e7d5664dabc62fc9cae5a4b0ab0e0435a692f2 |
ripemd-160 | 505b44ce3525799c80c5a6ee21fca0354dbab376 |
638479920 as geometric shapes
Circle
Radius = nDiameter | 1276959840 |
---|---|
Circumference | 4011687652.2732 |
Area | 1.2806910056442E+18 |
Sphere
Radius = nVolume | 1.0902606544379E+27 |
---|---|
Surface area | 5.1227640225768E+18 |
Circumference | 4011687652.2732 |
Square
Length = nPerimeter | 2553919680 |
---|---|
Area | 407656608243206400 |
Diagonal | 902946962.16689 |
Cube
Length = nSurface area | 2445939649459238400 |
---|---|
Volume | 2.6028055861859E+26 |
Space diagonal | 1105879661.0525 |
Equilateral Triangle
Length = nPerimeter | 1915439760 |
---|---|
Area | 1.7652048937961E+17 |
Altitude | 552939830.52626 |
Triangular Pyramid
Length = nSurface area | 1.7652048937961E+17 |
---|---|
Volume | 3.0674358001705E+25 |
Height | 300982320.7223 |