81444400 (number)
81444400 is an even 8-digits composite number following 81444399 and preceding 81444401. In scientific notation, it is written as 8.1444400 × 10^7. The sum of its digits is 25. It has a total of 8 prime factors and 60 positive divisors. There are 31691520 positive integers (up to 81444400) that are relatively prime to 81444400.
Interesting facts
- 81444400 has 60 divisors, whose sum is 200995072
- The reverse of 81444400 is 00444418
- Previous prime number is 37
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 25
- Digital Root 7
Name
Name | eighty-one million four hundred forty-four thousand four hundred |
---|
Notation
Scientific notation | 8.1444400 × 10^7 |
---|---|
Engineering notation | 8.1444400 × 10^6 |
Prime Factorization of 81444400
Prime Factorization 2 × 2 × 2 × 2 × 5 × 5 × 37 × 5503
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 2036110 | Product of the distinct prime numbers |
The prime factorization of 81444400 is 2 × 2 × 2 × 2 × 5 × 5 × 37 × 5503. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81444400)
Multiplication
n×yn×2 | 162888800 |
---|---|
n×3 | 244333200 |
n×4 | 325777600 |
n×5 | 407222000 |
Division
n÷yn÷2 | 40722200 |
---|---|
n÷3 | 27148133.333333 |
n÷3 | 20361100 |
n÷5 | 16288880 |
Exponentiation
nyn2 | 6633190291360000 |
---|---|
n3 | 5.4023620336564E+23 |
n4 | 4.3999213441393E+31 |
n5 | 3.5834895392062E+39 |
Nth Root
y√n2√n | 9024.6551180641 |
---|---|
3√n | 433.46470704445 |
4√n | 94.998184814575 |
5√n | 38.209578389502 |
Divisors of 81444400
60 divisors
τ | Total Divisors | 60 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -81444399 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.016666666666667 | 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 | 60 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 81444400 can be divided by 60 positive divisors. The sum of these divisors (counting 81444400) is 1, the average is 0.016666666666667.
Base conversion 81444400
Base | System | Value |
---|---|---|
2 | Binary | 100110110101011111000110000 |
3 | Ternary | 12200020210201021 |
4 | Quaternary | 10312223320300 |
5 | Quinary | 131322210100 |
6 | Senary | 12025345224 |
8 | Octal | 466537060 |
10 | Decimal | 81444400 |
12 | Duodecimal | 23338214 |
16 | Hexadecimal | 4dabe30 |
20 | Vigesimal | 1590b00 |
36 | Base36 | 1chmwg |
Cryptographic Hash Functions
md5 | f7f8cf280216cd2c8a7fde8ceb1407a3 |
---|---|
sha1 | f836e34e35048653ee8ae4deda018f25bd755059 |
sha256 | 656bd74672b3ec15df88d84ce8dc687523ff510928aceaec1ba641982943db07 |
sha512 | f649f19f1712e195fe9d2771deb76bcb650fbd5ed2210b100b7cfeea4c22fd0b19cf05f07fd642b49f518f9e7b9e93f5d0bf48ab462f2f829dbe33bcd83f3810 |
ripemd-160 | 38cda3b001e3add908e9a94c9f1c6eca7a035865 |
81444400 as geometric shapes
Circle
Radius = nDiameter | 162888800 |
---|---|
Circumference | 511730257.43206 |
Area | 2.08387818892E+16 |
Sphere
Radius = nVolume | 2.262936116929E+24 |
---|---|
Surface area | 8.3355127556799E+16 |
Circumference | 511730257.43206 |
Square
Length = nPerimeter | 325777600 |
---|---|
Area | 6633190291360000 |
Diagonal | 115179775.05934 |
Cube
Length = nSurface area | 39799141748160000 |
---|---|
Volume | 5.4023620336564E+23 |
Space diagonal | 141065838.79196 |
Equilateral Triangle
Length = nPerimeter | 244333200 |
---|---|
Area | 2.872255650227E+15 |
Altitude | 70532919.395981 |
Triangular Pyramid
Length = nSurface area | 2.872255650227E+15 |
---|---|
Volume | 6.3667447140387E+22 |
Height | 38393258.353113 |