81444146 (number)
81444146 is an even 8-digits composite number following 81444145 and preceding 81444147. In scientific notation, it is written as 8.1444146 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 48 positive divisors. There are 32145984 positive integers (up to 81444146) that are relatively prime to 81444146.
Interesting facts
- 81444146 has 48 divisors, whose sum is 151166400
- The reverse of 81444146 is 64144418
- Previous prime number is 53
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 32
- Digital Root 5
Name
Name | eighty-one million four hundred forty-four thousand one hundred forty-six |
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Notation
Scientific notation | 8.1444146 × 10^7 |
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Engineering notation | 8.1444146 × 10^6 |
Prime Factorization of 81444146
Prime Factorization 2 × 19 × 7 × 53 × 53 × 109
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 1536682 | Product of the distinct prime numbers |
The prime factorization of 81444146 is 2 × 19 × 7 × 53 × 53 × 109. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81444146)
Multiplication
n×yn×2 | 162888292 |
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n×3 | 244332438 |
n×4 | 325776584 |
n×5 | 407220730 |
Division
n÷yn÷2 | 40722073 |
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n÷3 | 27148048.666667 |
n÷3 | 20361036.5 |
n÷5 | 16288829.2 |
Exponentiation
nyn2 | 6633148917669316 |
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n3 | 5.402311488904E+23 |
n4 | 4.3998664563978E+31 |
n5 | 3.5834336605536E+39 |
Nth Root
y√n2√n | 9024.6410454932 |
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3√n | 433.46425642967 |
4√n | 94.998110746968 |
5√n | 38.209554556691 |
Divisors of 81444146
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 | -81444145 | 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 81444146 can be divided by 48 positive divisors. The sum of these divisors (counting 81444146) is 1, the average is 0.020833333333333.
Base conversion 81444146
Base | System | Value |
---|---|---|
2 | Binary | 100110110101011110100110010 |
3 | Ternary | 12200020210100212 |
4 | Quaternary | 10312223310302 |
5 | Quinary | 131322203041 |
6 | Senary | 12025344122 |
8 | Octal | 466536462 |
10 | Decimal | 81444146 |
12 | Duodecimal | 23338042 |
16 | Hexadecimal | 4dabd32 |
20 | Vigesimal | 1590a76 |
36 | Base36 | 1chmpe |
Cryptographic Hash Functions
md5 | dcde44971cccc945a601f460c6a96d7a |
---|---|
sha1 | 13bc8606786cd78c2a340f6ba6da1bb3db36ace5 |
sha256 | 1b455485424bcf9426307e24c6cd9a22d2e2735419ff92ed52a0183012c66835 |
sha512 | f32088c983798d16b5c9c2b6c94c41f8b36349dd9097c01ce0f4790423724335ab289ff8db3a72f40b81eb01f281e976e06aaee5cd20968af18034896e971a60 |
ripemd-160 | 18c28211332292c0ea911f9e59d5e5322ab01a27 |
81444146 as geometric shapes
Circle
Radius = nDiameter | 162888292 |
---|---|
Circumference | 511728661.50299 |
Area | 2.0838651909917E+16 |
Sphere
Radius = nVolume | 2.2629149447926E+24 |
---|---|
Surface area | 8.3354607639668E+16 |
Circumference | 511728661.50299 |
Square
Length = nPerimeter | 325776584 |
---|---|
Area | 6633148917669316 |
Diagonal | 115179415.84909 |
Cube
Length = nSurface area | 39798893506015896 |
---|---|
Volume | 5.402311488904E+23 |
Space diagonal | 141065398.85106 |
Equilateral Triangle
Length = nPerimeter | 244332438 |
---|---|
Area | 2.8722377348934E+15 |
Altitude | 70532699.425529 |
Triangular Pyramid
Length = nSurface area | 2.8722377348934E+15 |
---|---|
Volume | 6.3666851464767E+22 |
Height | 38393138.616365 |