638631728 (number)
638631728 is an even 9-digits composite number following 638631727 and preceding 638631729. In scientific notation, it is written as 6.38631728 × 10^8. The sum of its digits is 44. It has a total of 7 prime factors and 40 positive divisors. There are 273434112 positive integers (up to 638631728) that are relatively prime to 638631728.
Interesting facts
- 638631728 has 40 divisors, whose sum is 1415483808
- The reverse of 638631728 is 827136836
- Previous prime number is 1373
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 44
- Digital Root 8
Name
Name | six hundred thirty-eight million six hundred thirty-one thousand seven hundred twenty-eight |
---|
Notation
Scientific notation | 6.38631728 × 10^8 |
---|---|
Engineering notation | 6.38631728 × 10^6 |
Prime Factorization of 638631728
Prime Factorization 2 × 2 × 2 × 2 × 7 × 1373 × 4153
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 79828966 | Product of the distinct prime numbers |
The prime factorization of 638631728 is 2 × 2 × 2 × 2 × 7 × 1373 × 4153. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 638631728)
Multiplication
n×yn×2 | 1277263456 |
---|---|
n×3 | 1915895184 |
n×4 | 2554526912 |
n×5 | 3193158640 |
Division
n÷yn÷2 | 319315864 |
---|---|
n÷3 | 212877242.66667 |
n÷3 | 159657932 |
n÷5 | 127726345.6 |
Exponentiation
nyn2 | 407850484008265984 |
---|---|
n3 | 2.6046625936784E+26 |
n4 | 1.6634201730578E+35 |
n5 | 1.0623128995099E+44 |
Nth Root
y√n2√n | 25271.163962113 |
---|---|
3√n | 861.15930186201 |
4√n | 158.9690660541 |
5√n | 57.683300034227 |
Divisors of 638631728
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 | -638631727 | 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 638631728 can be divided by 40 positive divisors. The sum of these divisors (counting 638631728) is 1, the average is 0.025.
Base conversion 638631728
Base | System | Value |
---|---|---|
2 | Binary | 100110000100001011111100110000 |
3 | Ternary | 1122111200212000222 |
4 | Quaternary | 212010023330300 |
5 | Quinary | 2301442203403 |
6 | Senary | 143212032212 |
8 | Octal | 4604137460 |
10 | Decimal | 638631728 |
12 | Duodecimal | 159a62668 |
16 | Hexadecimal | 2610bf30 |
20 | Vigesimal | 9jb8j68 |
36 | Base36 | ak83e8 |
Cryptographic Hash Functions
md5 | d2cde4eeb8bb0e61f56ab39f7d2d88ae |
---|---|
sha1 | d1aca94704652bd858086f1a016c776ca66e0b0b |
sha256 | 424a474cc1490d4c13ab089e232cddb17ab3b492a5cea503e01bcecb98d62fab |
sha512 | e867f488c513164c906c58a16d54160d75f424168802a497e8324b3cb004ec3cebe0f637420c8b9fae68a051421bba51d41376f8c7bfda48eca1f7bd22be7dd0 |
ripemd-160 | 4800ba7f7558ee754e2480ef4efca67a9c4c4d04 |
638631728 as geometric shapes
Circle
Radius = nDiameter | 1277263456 |
---|---|
Circumference | 4012641490.0683 |
Area | 1.2813000843234E+18 |
Sphere
Radius = nVolume | 1.0910385159173E+27 |
---|---|
Surface area | 5.1252003372936E+18 |
Circumference | 4012641490.0683 |
Square
Length = nPerimeter | 2554526912 |
---|---|
Area | 407850484008265984 |
Diagonal | 903161651.09937 |
Cube
Length = nSurface area | 2447102904049595904 |
---|---|
Volume | 2.6046625936784E+26 |
Space diagonal | 1106142600.2215 |
Equilateral Triangle
Length = nPerimeter | 1915895184 |
---|---|
Area | 1.7660444004847E+17 |
Altitude | 553071300.11075 |
Triangular Pyramid
Length = nSurface area | 1.7660444004847E+17 |
---|---|
Volume | 3.0696243044882E+25 |
Height | 301053883.69979 |