81389319 (number)
81389319 is an odd 8-digits composite number following 81389318 and preceding 81389320. In scientific notation, it is written as 8.1389319 × 10^7. The sum of its digits is 42. It has a total of 7 prime factors and 40 positive divisors. There are 45999360 positive integers (up to 81389319) that are relatively prime to 81389319.
Interesting facts
- 81389319 has 40 divisors, whose sum is 127551600
- The reverse of 81389319 is 91398318
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity odd
- Number length 8
- Sum of Digits 42
- Digital Root 6
Name
Name | eighty-one million three hundred eighty-nine thousand three hundred nineteen |
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Notation
Scientific notation | 8.1389319 × 10^7 |
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Engineering notation | 8.1389319 × 10^6 |
Prime Factorization of 81389319
Prime Factorization 3 × 11 × 11 × 11 × 109 × 11 × 17
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 61149 | Product of the distinct prime numbers |
The prime factorization of 81389319 is 3 × 11 × 11 × 11 × 109 × 11 × 17. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81389319)
Multiplication
n×yn×2 | 162778638 |
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n×3 | 244167957 |
n×4 | 325557276 |
n×5 | 406946595 |
Division
n÷yn÷2 | 40694659.5 |
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n÷3 | 27129773 |
n÷3 | 20347329.75 |
n÷5 | 16277863.8 |
Exponentiation
nyn2 | 6624221247283761 |
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n3 | 5.3914085622176E+23 |
n4 | 4.3880307132966E+31 |
n5 | 3.5713883150629E+39 |
Nth Root
y√n2√n | 9021.6029063576 |
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3√n | 433.36696734334 |
4√n | 94.982118876963 |
5√n | 38.204408748956 |
Divisors of 81389319
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 | -81389318 | 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 81389319 can be divided by 40 positive divisors. The sum of these divisors (counting 81389319) is 1, the average is 0.025.
Base conversion 81389319
Base | System | Value |
---|---|---|
2 | Binary | 100110110011110011100000111 |
3 | Ternary | 12200011000011020 |
4 | Quaternary | 10312132130013 |
5 | Quinary | 131313424234 |
6 | Senary | 12024242223 |
8 | Octal | 466363407 |
10 | Decimal | 81389319 |
12 | Duodecimal | 23310373 |
16 | Hexadecimal | 4d9e707 |
20 | Vigesimal | 158dd5j |
36 | Base36 | 1cggef |
Cryptographic Hash Functions
md5 | dfd98321c2dfb46eac5a596529e115f1 |
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sha1 | 826376dfe78b7f81a61a8b0770cba466e3d18ea1 |
sha256 | 7d5e1938d5bfb3c4240ccb36f5998ebcf26b8188ed9eb1b568f61b2279dfd368 |
sha512 | a535180d4662ea0f2e853048a04786157d04a78b0d53427d921337c4101ae8ff2a3fe5c9a9483fb9c660f3d6ecfa65855adb94526d4458d919fa95878c67aafc |
ripemd-160 | f8af381ec439570221626c1cd8d5834097def15c |
81389319 as geometric shapes
Circle
Radius = nDiameter | 162778638 |
---|---|
Circumference | 511384173.30215 |
Area | 2.081060480622E+16 |
Sphere
Radius = nVolume | 2.2583479375418E+24 |
---|---|
Surface area | 8.324241922488E+16 |
Circumference | 511384173.30215 |
Square
Length = nPerimeter | 325557276 |
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Area | 6624221247283761 |
Diagonal | 115101878.76211 |
Cube
Length = nSurface area | 39745327483702566 |
---|---|
Volume | 5.3914085622176E+23 |
Space diagonal | 140970435.70143 |
Equilateral Triangle
Length = nPerimeter | 244167957 |
---|---|
Area | 2.8683719402182E+15 |
Altitude | 70485217.850715 |
Triangular Pyramid
Length = nSurface area | 2.8683719402182E+15 |
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Volume | 6.3538359241521E+22 |
Height | 38367292.920703 |