81372148 (number)
81372148 is an even 8-digits composite number following 81372147 and preceding 81372149. In scientific notation, it is written as 8.1372148 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 48 positive divisors. There are 32947200 positive integers (up to 81372148) that are relatively prime to 81372148.
Interesting facts
- 81372148 has 48 divisors, whose sum is 159860736
- The reverse of 81372148 is 84127318
- Previous prime number is 143
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 34
- Digital Root 7
Name
Name | eighty-one million three hundred seventy-two thousand one hundred forty-eight |
---|
Notation
Scientific notation | 8.1372148 × 10^7 |
---|---|
Engineering notation | 8.1372148 × 10^6 |
Prime Factorization of 81372148
Prime Factorization 2 × 2 × 31 × 13 × 143 × 353
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 40686074 | Product of the distinct prime numbers |
The prime factorization of 81372148 is 2 × 2 × 31 × 13 × 143 × 353. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81372148)
Multiplication
n×yn×2 | 162744296 |
---|---|
n×3 | 244116444 |
n×4 | 325488592 |
n×5 | 406860740 |
Division
n÷yn÷2 | 40686074 |
---|---|
n÷3 | 27124049.333333 |
n÷3 | 20343037 |
n÷5 | 16274429.6 |
Exponentiation
nyn2 | 6621426470133904 |
---|---|
n3 | 5.3879969469885E+23 |
n4 | 4.384328849939E+31 |
n5 | 3.5676225605791E+39 |
Nth Root
y√n2√n | 9020.6511960058 |
---|---|
3√n | 433.33648886591 |
4√n | 94.977108799993 |
5√n | 38.202796588349 |
Divisors of 81372148
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 | -81372147 | 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 81372148 can be divided by 48 positive divisors. The sum of these divisors (counting 81372148) is 1, the average is 0.020833333333333.
Base conversion 81372148
Base | System | Value |
---|---|---|
2 | Binary | 100110110011010001111110100 |
3 | Ternary | 12200010010121021 |
4 | Quaternary | 10312122033310 |
5 | Quinary | 131312402043 |
6 | Senary | 12024030524 |
8 | Octal | 466321764 |
10 | Decimal | 81372148 |
12 | Duodecimal | 23302444 |
16 | Hexadecimal | 4d9a3f4 |
20 | Vigesimal | 158ba78 |
36 | Base36 | 1cg35g |
Cryptographic Hash Functions
md5 | 44ae0969a3d2cdc3d1108b4ddcc2cc80 |
---|---|
sha1 | d120df2cc76fe1a00ec616db2b7cb0cbf7e1c9de |
sha256 | 3223f0e2cba0979a4a4a91e47c2473350a68405e6fea04df6cb62046b49a38d3 |
sha512 | e4111af3b42620e98992b5a2f01f6f9afa2d80cf4c5669eefe7eb5704dc9bbb414bf4e557b91c48ca7c858ab9bc67a484a70e17d51aa455cb233128ec9ccfb8f |
ripemd-160 | 9c2526bd27875a7b5bb156abddc9dacdfe68a3e5 |
81372148 as geometric shapes
Circle
Radius = nDiameter | 162744296 |
---|---|
Circumference | 511276284.72724 |
Area | 2.0801824754858E+16 |
Sphere
Radius = nVolume | 2.2569188834965E+24 |
---|---|
Surface area | 8.3207299019431E+16 |
Circumference | 511276284.72724 |
Square
Length = nPerimeter | 325488592 |
---|---|
Area | 6621426470133904 |
Diagonal | 115077595.30103 |
Cube
Length = nSurface area | 39728558820803424 |
---|---|
Volume | 5.3879969469885E+23 |
Space diagonal | 140940694.65701 |
Equilateral Triangle
Length = nPerimeter | 244116444 |
---|---|
Area | 2.8671617662133E+15 |
Altitude | 70470347.328507 |
Triangular Pyramid
Length = nSurface area | 2.8671617662133E+15 |
---|---|
Volume | 6.3498152970467E+22 |
Height | 38359198.433677 |