638689920 (number)
638689920 is an even 9-digits composite number following 638689919 and preceding 638689921. In scientific notation, it is written as 6.38689920 × 10^8. The sum of its digits is 51. It has a total of 9 prime factors and 32 positive divisors. There are 154828800 positive integers (up to 638689920) that are relatively prime to 638689920.
Interesting facts
- 638689920 has 32 divisors, whose sum is 1280143860
- The reverse of 638689920 is 029986836
- Previous prime number is 165
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 51
- Digital Root 6
Name
Name | six hundred thirty-eight million six hundred eighty-nine thousand nine hundred twenty |
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Notation
Scientific notation | 6.38689920 × 10^8 |
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Engineering notation | 6.38689920 × 10^6 |
Prime Factorization of 638689920
Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 165 × 30241
Composite numberω | Distinct Factors | 3 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 9 | Total number of prime factors |
rad | Radical | 9979530 | Product of the distinct prime numbers |
The prime factorization of 638689920 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 165 × 30241. Since it has a total of 9 prime factors.
Most popular turbo-numbers
Basic calculations (n = 638689920)
Multiplication
n×yn×2 | 1277379840 |
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n×3 | 1916069760 |
n×4 | 2554759680 |
n×5 | 3193449600 |
Division
n÷yn÷2 | 319344960 |
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n÷3 | 212896640 |
n÷3 | 159672480 |
n÷5 | 127737984 |
Exponentiation
nyn2 | 407924813909606400 |
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n3 | 2.6053746676194E+26 |
n4 | 1.6640265380319E+35 |
n5 | 1.0627969764535E+44 |
Nth Root
y√n2√n | 25272.315287682 |
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3√n | 861.18545729082 |
4√n | 158.97268723803 |
5√n | 57.684351214151 |
Divisors of 638689920
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 | -638689919 | 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 638689920 can be divided by 32 positive divisors. The sum of these divisors (counting 638689920) is 1, the average is 0.03125.
Base conversion 638689920
Base | System | Value |
---|---|---|
2 | Binary | 100110000100011010001010000000 |
3 | Ternary | 1122111210210212020 |
4 | Quaternary | 212010122022000 |
5 | Quinary | 2302001034140 |
6 | Senary | 143213201440 |
8 | Octal | 4604321200 |
10 | Decimal | 638689920 |
12 | Duodecimal | 159a90280 |
16 | Hexadecimal | 2611a280 |
20 | Vigesimal | 9jbg4g0 |
36 | Base36 | ak9cao |
Cryptographic Hash Functions
md5 | 32aef89ccc67328887adb0c30e5a7266 |
---|---|
sha1 | 1b0cdddd1f174e4f357c6f0e4202258dfe0e2347 |
sha256 | 8d83939d107dca7e20038e38a735bb0b1693d9246cf559e8db7a1eb3e1019fff |
sha512 | 5929bbbba5151c179dee9e77e7ed4c9a974d8621fe943fd6cd0d90a116ef44c69810c20b1e45101fd1443277a5e775b317dcbfefe00a07b8961398efb03570d8 |
ripemd-160 | 61dcf75c02e3f8e01c284f62c7a4b92f77d473ea |
638689920 as geometric shapes
Circle
Radius = nDiameter | 1277379840 |
---|---|
Circumference | 4013007121.1877 |
Area | 1.2815335985954E+18 |
Sphere
Radius = nVolume | 1.0913367887523E+27 |
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Surface area | 5.1261343943816E+18 |
Circumference | 4013007121.1877 |
Square
Length = nPerimeter | 2554759680 |
---|---|
Area | 407924813909606400 |
Diagonal | 903243947.01499 |
Cube
Length = nSurface area | 2447548883457638400 |
---|---|
Volume | 2.6053746676194E+26 |
Space diagonal | 1106243391.7221 |
Equilateral Triangle
Length = nPerimeter | 1916069760 |
---|---|
Area | 1.7663662583988E+17 |
Altitude | 553121695.86105 |
Triangular Pyramid
Length = nSurface area | 1.7663662583988E+17 |
---|---|
Volume | 3.0704634916756E+25 |
Height | 301081315.67166 |