638861268 (number)
638861268 is an even 9-digits composite number following 638861267 and preceding 638861269. In scientific notation, it is written as 6.38861268 × 10^8. The sum of its digits is 48. It has a total of 6 prime factors and 36 positive divisors. There are 206080560 positive integers (up to 638861268) that are relatively prime to 638861268.
Interesting facts
- 638861268 has 36 divisors, whose sum is 1540341600
- The reverse of 638861268 is 862168836
- Previous prime number is 31
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 eight hundred sixty-one thousand two hundred sixty-eight |
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Notation
Scientific notation | 6.38861268 × 10^8 |
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Engineering notation | 6.38861268 × 10^6 |
Prime Factorization of 638861268
Prime Factorization 2 × 2 × 31 × 3 × 31 × 55399
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 10304214 | Product of the distinct prime numbers |
The prime factorization of 638861268 is 2 × 2 × 31 × 3 × 31 × 55399. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 638861268)
Multiplication
n×yn×2 | 1277722536 |
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n×3 | 1916583804 |
n×4 | 2555445072 |
n×5 | 3194306340 |
Division
n÷yn÷2 | 319430634 |
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n÷3 | 212953756 |
n÷3 | 159715317 |
n÷5 | 127772253.6 |
Exponentiation
nyn2 | 408143719750567824 |
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n3 | 2.6074721432608E+26 |
n4 | 1.6658129597183E+35 |
n5 | 1.0642233796965E+44 |
Nth Root
y√n2√n | 25275.705094023 |
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3√n | 861.26246347021 |
4√n | 158.98334848034 |
5√n | 57.687445998455 |
Divisors of 638861268
36 divisors
τ | Total Divisors | 36 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -638861267 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.027777777777778 | 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 | 36 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 638861268 can be divided by 36 positive divisors. The sum of these divisors (counting 638861268) is 1, the average is 0.027777777777778.
Base conversion 638861268
Base | System | Value |
---|---|---|
2 | Binary | 100110000101000011111111010100 |
3 | Ternary | 1122112010111220110 |
4 | Quaternary | 212011003333110 |
5 | Quinary | 2302022030033 |
6 | Senary | 143221003020 |
8 | Octal | 4605037724 |
10 | Decimal | 638861268 |
12 | Duodecimal | 159b53470 |
16 | Hexadecimal | 26143fd4 |
20 | Vigesimal | 9jchd38 |
36 | Base36 | akd0ic |
Cryptographic Hash Functions
md5 | 8d81c65f18314083456e1b0d3541d321 |
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sha1 | 60ede376d0435fad36a14829700b60677beb0c55 |
sha256 | 9c1656159865aabd389866ae3c4a54bb0255bcc51e7978c981630d35b3469d99 |
sha512 | 4d7683c435982f439fc7b2659b3982e8ca512639a3e29aac1ed043b9e124d9e2f4dfb9631ce094dfe84dd14d9b4456b44db9b8f8121f0c42bea6cd26127d2f03 |
ripemd-160 | 95b4f17c0a963e22912c8685702db234752f4980 |
638861268 as geometric shapes
Circle
Radius = nDiameter | 1277722536 |
---|---|
Circumference | 4014083732.4237 |
Area | 1.2822213115772E+18 |
Sphere
Radius = nVolume | 1.0922153772944E+27 |
---|---|
Surface area | 5.1288852463088E+18 |
Circumference | 4014083732.4237 |
Square
Length = nPerimeter | 2555445072 |
---|---|
Area | 408143719750567824 |
Diagonal | 903486269.68047 |
Cube
Length = nSurface area | 2448862318503406944 |
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Volume | 2.6074721432608E+26 |
Space diagonal | 1106540175.1639 |
Equilateral Triangle
Length = nPerimeter | 1916583804 |
---|---|
Area | 1.7673141484953E+17 |
Altitude | 553270087.58194 |
Triangular Pyramid
Length = nSurface area | 1.7673141484953E+17 |
---|---|
Volume | 3.0729353904246E+25 |
Height | 301162089.89349 |