18388640 (number)
18388640 is an even 8-digits composite number following 18388639 and preceding 18388641. In scientific notation, it is written as 1.8388640 × 10^7. The sum of its digits is 38. It has a total of 8 prime factors and 48 positive divisors. There are 7311360 positive integers (up to 18388640) that are relatively prime to 18388640.
Interesting facts
- 18388640 has 48 divisors, whose sum is 43704360
- The reverse of 18388640 is 04688381
- Previous prime number is 409
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 38
- Digital Root 2
Name
Name | eighteen million three hundred eighty-eight thousand six hundred forty |
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Notation
Scientific notation | 1.8388640 × 10^7 |
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Engineering notation | 1.8388640 × 10^6 |
Prime Factorization of 18388640
Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 409 × 281
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 1149290 | Product of the distinct prime numbers |
The prime factorization of 18388640 is 2 × 2 × 2 × 2 × 2 × 5 × 409 × 281. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 18388640)
Multiplication
n×yn×2 | 36777280 |
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n×3 | 55165920 |
n×4 | 73554560 |
n×5 | 91943200 |
Division
n÷yn÷2 | 9194320 |
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n÷3 | 6129546.6666667 |
n÷3 | 4597160 |
n÷5 | 3677728 |
Exponentiation
nyn2 | 338142081049600 |
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n3 | 6.2179729972719E+21 |
n4 | 1.1434006697655E+29 |
n5 | 2.1025583292077E+36 |
Nth Root
y√n2√n | 4288.1977566339 |
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3√n | 263.9468824875 |
4√n | 65.4843321462 |
5√n | 28.37330471024 |
Divisors of 18388640
48 divisors
τ | Total Divisors | 48 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -18388639 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.020833333333333 | 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 | 48 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 18388640 can be divided by 48 positive divisors. The sum of these divisors (counting 18388640) is 1, the average is 0.020833333333333.
Base conversion 18388640
Base | System | Value |
---|---|---|
2 | Binary | 1000110001001011010100000 |
3 | Ternary | 1021121020110202 |
4 | Quaternary | 1012021122200 |
5 | Quinary | 14201414030 |
6 | Senary | 1454044332 |
8 | Octal | 106113240 |
10 | Decimal | 18388640 |
12 | Duodecimal | 61a96a8 |
16 | Hexadecimal | 11896a0 |
20 | Vigesimal | 5eibc0 |
36 | Base36 | ay4rk |
Cryptographic Hash Functions
md5 | 9a446c7945c0133baf6074959674edb2 |
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sha1 | 25e26949d7fa43f5aa010ebefe4aec66fe8a9e90 |
sha256 | 4350b53ab9148eabcf4a3955832bbb2e5891eb73735868ce57c0270ad5ebd9a6 |
sha512 | 120174f9229d7fbf2ed2d0be7be3669e745312be79c585fdfcc4cc331adc722065dd91da3d64c758b56d4721c18e0e5d92368dfb73269f510d163aea51bf647e |
ripemd-160 | 75fa1a16dca177c17e8c4253ad3e13ae1359e820 |
18388640 as geometric shapes
Circle
Radius = nDiameter | 36777280 |
---|---|
Circumference | 115539232.66701 |
Area | 1.062304677695E+15 |
Sphere
Radius = nVolume | 2.6045784384599E+22 |
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Surface area | 4.24921871078E+15 |
Circumference | 115539232.66701 |
Square
Length = nPerimeter | 73554560 |
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Area | 338142081049600 |
Diagonal | 26005464.081596 |
Cube
Length = nSurface area | 2028852486297600 |
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Volume | 6.2179729972719E+21 |
Space diagonal | 31850058.762093 |
Equilateral Triangle
Length = nPerimeter | 55165920 |
---|---|
Area | 1.4641981613875E+14 |
Altitude | 15925029.381047 |
Triangular Pyramid
Length = nSurface area | 1.4641981613875E+14 |
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Volume | 7.3279514526764E+20 |
Height | 8668488.0271988 |