81435420 (number)
81435420 is an even 8-digits composite number following 81435419 and preceding 81435421. In scientific notation, it is written as 8.1435420 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 36 positive divisors. There are 19736640 positive integers (up to 81435420) that are relatively prime to 81435420.
Interesting facts
- 81435420 has 36 divisors, whose sum is 160169240
- The reverse of 81435420 is 02453418
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
Name | eighty-one million four hundred thirty-five thousand four hundred twenty |
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Notation
Scientific notation | 8.1435420 × 10^7 |
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Engineering notation | 8.1435420 × 10^6 |
Prime Factorization of 81435420
Prime Factorization 2 × 2 × 45 × 11 × 11 × 3739
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 3701610 | Product of the distinct prime numbers |
The prime factorization of 81435420 is 2 × 2 × 45 × 11 × 11 × 3739. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81435420)
Multiplication
n×yn×2 | 162870840 |
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n×3 | 244306260 |
n×4 | 325741680 |
n×5 | 407177100 |
Division
n÷yn÷2 | 40717710 |
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n÷3 | 27145140 |
n÷3 | 20358855 |
n÷5 | 16287084 |
Exponentiation
nyn2 | 6631727630576400 |
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n3 | 5.4005752492159E+23 |
n4 | 4.397981136615E+31 |
n5 | 3.5815144101232E+39 |
Nth Root
y√n2√n | 9024.1575784114 |
---|---|
3√n | 433.44877529166 |
4√n | 94.995566098694 |
5√n | 38.208735760302 |
Divisors of 81435420
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 | -81435419 | 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 81435420 can be divided by 36 positive divisors. The sum of these divisors (counting 81435420) is 1, the average is 0.027777777777778.
Base conversion 81435420
Base | System | Value |
---|---|---|
2 | Binary | 100110110101001101100011100 |
3 | Ternary | 12200020100101200 |
4 | Quaternary | 10312221230130 |
5 | Quinary | 131321413140 |
6 | Senary | 12025235500 |
8 | Octal | 466515434 |
10 | Decimal | 81435420 |
12 | Duodecimal | 23332b90 |
16 | Hexadecimal | 4da9b1c |
20 | Vigesimal | 158j8b0 |
36 | Base36 | 1chfz0 |
Cryptographic Hash Functions
md5 | 796587506364764a9596a61a7fa06e2a |
---|---|
sha1 | ebfbbfc494c1c840929a321d97f6cfacf97d35ef |
sha256 | 92bd0b5811c9d30bb870b261dc32b26ca80a2013f28ebef6b54fe65a993123ed |
sha512 | 66ebbbec3b26838cef317978df28bfc9f8e94f23b0ae0134027f6b03784982487c161975110a86de888e1dacc022abd26ba657b7820060bf0dcaf2a431f683c3 |
ripemd-160 | 7637520f94793f4c91dfbe1940130ee149c63f04 |
81435420 as geometric shapes
Circle
Radius = nDiameter | 162870840 |
---|---|
Circumference | 511673834.428 |
Area | 2.0834186804827E+16 |
Sphere
Radius = nVolume | 2.2621876704128E+24 |
---|---|
Surface area | 8.3336747219309E+16 |
Circumference | 511673834.428 |
Square
Length = nPerimeter | 325741680 |
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Area | 6631727630576400 |
Diagonal | 115167075.42155 |
Cube
Length = nSurface area | 39790365783458400 |
---|---|
Volume | 5.4005752492159E+23 |
Space diagonal | 141050284.97571 |
Equilateral Triangle
Length = nPerimeter | 244306260 |
---|---|
Area | 2.8716222995292E+15 |
Altitude | 70525142.487855 |
Triangular Pyramid
Length = nSurface area | 2.8716222995292E+15 |
---|---|
Volume | 6.3646389683814E+22 |
Height | 38389025.140516 |