81998548 (number)
81998548 is an even 8-digits composite number following 81998547 and preceding 81998549. In scientific notation, it is written as 8.1998548 × 10^7. The sum of its digits is 52. It has a total of 6 prime factors and 36 positive divisors. There are 38106112 positive integers (up to 81998548) that are relatively prime to 81998548.
Interesting facts
- 81998548 has 36 divisors, whose sum is 154341180
- The reverse of 81998548 is 84589918
- Previous prime number is 89
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 52
- Digital Root 7
Name
Name | eighty-one million nine hundred ninety-eight thousand five hundred forty-eight |
---|
Notation
Scientific notation | 8.1998548 × 10^7 |
---|---|
Engineering notation | 8.1998548 × 10^6 |
Prime Factorization of 81998548
Prime Factorization 2 × 2 × 17 × 17 × 89 × 797
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 2411722 | Product of the distinct prime numbers |
The prime factorization of 81998548 is 2 × 2 × 17 × 17 × 89 × 797. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81998548)
Multiplication
n×yn×2 | 163997096 |
---|---|
n×3 | 245995644 |
n×4 | 327994192 |
n×5 | 409992740 |
Division
n÷yn÷2 | 40999274 |
---|---|
n÷3 | 27332849.333333 |
n÷3 | 20499637 |
n÷5 | 16399709.6 |
Exponentiation
nyn2 | 6723761874108304 |
---|---|
n3 | 5.5133871077464E+23 |
n4 | 4.5208973739712E+31 |
n5 | 3.7070702032265E+39 |
Nth Root
y√n2√n | 9055.3049644946 |
---|---|
3√n | 434.44558425802 |
4√n | 95.159366141723 |
5√n | 38.261433075754 |
Divisors of 81998548
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 | -81998547 | 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 81998548 can be divided by 36 positive divisors. The sum of these divisors (counting 81998548) is 1, the average is 0.027777777777778.
Base conversion 81998548
Base | System | Value |
---|---|---|
2 | Binary | 100111000110011001011010100 |
3 | Ternary | 12201021221212021 |
4 | Quaternary | 10320303023110 |
5 | Quinary | 131442423143 |
6 | Senary | 12045302524 |
8 | Octal | 470631324 |
10 | Decimal | 81998548 |
12 | Duodecimal | 23564a44 |
16 | Hexadecimal | 4e332d4 |
20 | Vigesimal | 15c9g78 |
36 | Base36 | 1ctihg |
Cryptographic Hash Functions
md5 | e312761601d3c823eca17e23fd1b4aea |
---|---|
sha1 | dccc613549e8a91c2558549b6de0600c241f6693 |
sha256 | a4142d774821f1006323cacc7f7c4be5f086db7c1038988405813a9e892fa2e3 |
sha512 | b182f38981b9e2d4d535bfbc227608d6569a704b7cafb9febf342c31bb479c07910d38f1fc18c09d59c8d428f3b16a241562f374919822db1bf7723214d7c819 |
ripemd-160 | 8d9a01d3d758abaef6bde6ba89a6363e5327e416 |
81998548 as geometric shapes
Circle
Radius = nDiameter | 163997096 |
---|---|
Circumference | 515212072.00366 |
Area | 2.1123320908186E+16 |
Sphere
Radius = nVolume | 2.3094421912124E+24 |
---|---|
Surface area | 8.4493283632743E+16 |
Circumference | 515212072.00366 |
Square
Length = nPerimeter | 327994192 |
---|---|
Area | 6723761874108304 |
Diagonal | 115963458.6765 |
Cube
Length = nSurface area | 40342571244649824 |
---|---|
Volume | 5.5133871077464E+23 |
Space diagonal | 142025651.28288 |
Equilateral Triangle
Length = nPerimeter | 245995644 |
---|---|
Area | 2.9114742959875E+15 |
Altitude | 71012825.641438 |
Triangular Pyramid
Length = nSurface area | 2.9114742959875E+15 |
---|---|
Volume | 6.4975890186566E+22 |
Height | 38654486.2255 |