638454920 (number)
638454920 is an even 9-digits composite number following 638454919 and preceding 638454921. In scientific notation, it is written as 6.38454920 × 10^8. The sum of its digits is 41. It has a total of 7 prime factors and 64 positive divisors. There are 246355200 positive integers (up to 638454920) that are relatively prime to 638454920.
Interesting facts
- 638454920 has 64 divisors, whose sum is 1487600640
- The reverse of 638454920 is 029454836
- Previous prime number is 421
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 41
- Digital Root 5
Name
Name | six hundred thirty-eight million four hundred fifty-four thousand nine hundred twenty |
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Notation
Scientific notation | 6.38454920 × 10^8 |
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Engineering notation | 6.38454920 × 10^6 |
Prime Factorization of 638454920
Prime Factorization 2 × 2 × 2 × 5 × 31 × 421 × 1223
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 159613730 | Product of the distinct prime numbers |
The prime factorization of 638454920 is 2 × 2 × 2 × 5 × 31 × 421 × 1223. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 638454920)
Multiplication
n×yn×2 | 1276909840 |
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n×3 | 1915364760 |
n×4 | 2553819680 |
n×5 | 3192274600 |
Division
n÷yn÷2 | 319227460 |
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n÷3 | 212818306.66667 |
n÷3 | 159613730 |
n÷5 | 127690984 |
Exponentiation
nyn2 | 407624684872206400 |
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n3 | 2.6024998557011E+26 |
n4 | 1.6615788371717E+35 |
n5 | 1.0608431835601E+44 |
Nth Root
y√n2√n | 25267.665503564 |
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3√n | 861.07982261464 |
4√n | 158.95806209049 |
5√n | 57.680105705447 |
Divisors of 638454920
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 | -638454919 | 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 638454920 can be divided by 64 positive divisors. The sum of these divisors (counting 638454920) is 1, the average is 0.015625.
Base conversion 638454920
Base | System | Value |
---|---|---|
2 | Binary | 100110000011100000110010001000 |
3 | Ternary | 1122111100212111112 |
4 | Quaternary | 212003200302020 |
5 | Quinary | 2301421024140 |
6 | Senary | 143204145452 |
8 | Octal | 4603406210 |
10 | Decimal | 638454920 |
12 | Duodecimal | 159998288 |
16 | Hexadecimal | 260e0c88 |
20 | Vigesimal | 9ja6h60 |
36 | Base36 | ak4ayw |
Cryptographic Hash Functions
md5 | fb4e1a473193948c8d3a7df503d32a88 |
---|---|
sha1 | 72c1e64764e23d20fde03116f689e670b6fdebe5 |
sha256 | 1b70398950fa23a9da2be491f3e2bf52355e32632ca02ceb28ad9a9aa8e12bda |
sha512 | bc2268d835d56bc3f020d649e99a0ec2759fae602b60a8fa70bb3157c5c0432bdd565cbbd6bcdc64c7598abf48a0dc8c4dc3c679eae968233540b3c847d7037c |
ripemd-160 | d8a11d49dbeb0b12866b78def2536bcbed8e1bbb |
638454920 as geometric shapes
Circle
Radius = nDiameter | 1276909840 |
---|---|
Circumference | 4011530572.6405 |
Area | 1.2805907154164E+18 |
Sphere
Radius = nVolume | 1.0901325903519E+27 |
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Surface area | 5.1223628616655E+18 |
Circumference | 4011530572.6405 |
Square
Length = nPerimeter | 2553819680 |
---|---|
Area | 407624684872206400 |
Diagonal | 902911606.82783 |
Cube
Length = nSurface area | 2445748109233238400 |
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Volume | 2.6024998557011E+26 |
Space diagonal | 1105836359.7823 |
Equilateral Triangle
Length = nPerimeter | 1915364760 |
---|---|
Area | 1.7650666615448E+17 |
Altitude | 552918179.89116 |
Triangular Pyramid
Length = nSurface area | 1.7650666615448E+17 |
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Volume | 3.0670754933388E+25 |
Height | 300970535.60928 |