81361260 (number)
81361260 is an even 8-digits composite number following 81361259 and preceding 81361261. In scientific notation, it is written as 8.1361260 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 21695040 positive integers (up to 81361260) that are relatively prime to 81361260.
Interesting facts
- 81361260 has 48 divisors, whose sum is 210011648
- The reverse of 81361260 is 06216318
- Previous prime number is 27
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
Name | eighty-one million three hundred sixty-one thousand two hundred sixty |
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Notation
Scientific notation | 8.1361260 × 10^7 |
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Engineering notation | 8.1361260 × 10^6 |
Prime Factorization of 81361260
Prime Factorization 2 × 2 × 15 × 3 × 27 × 16741
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 40680630 | Product of the distinct prime numbers |
The prime factorization of 81361260 is 2 × 2 × 15 × 3 × 27 × 16741. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 81361260)
Multiplication
n×yn×2 | 162722520 |
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n×3 | 244083780 |
n×4 | 325445040 |
n×5 | 406806300 |
Division
n÷yn÷2 | 40680630 |
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n÷3 | 27120420 |
n÷3 | 20340315 |
n÷5 | 16272252 |
Exponentiation
nyn2 | 6619654628787600 |
---|---|
n3 | 5.3858344136299E+23 |
n4 | 4.3819827404429E+31 |
n5 | 3.5652363706069E+39 |
Nth Root
y√n2√n | 9020.0476717144 |
---|---|
3√n | 433.31716047464 |
4√n | 94.97393153763 |
5√n | 38.201774188612 |
Divisors of 81361260
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 | -81361259 | 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 81361260 can be divided by 48 positive divisors. The sum of these divisors (counting 81361260) is 1, the average is 0.020833333333333.
Base conversion 81361260
Base | System | Value |
---|---|---|
2 | Binary | 100110110010111100101101100 |
3 | Ternary | 12200002120200000 |
4 | Quaternary | 10312113211230 |
5 | Quinary | 131312030020 |
6 | Senary | 12023504300 |
8 | Octal | 466274554 |
10 | Decimal | 81361260 |
12 | Duodecimal | 232b8090 |
16 | Hexadecimal | 4d9796c |
20 | Vigesimal | 158a330 |
36 | Base36 | 1cfur0 |
Cryptographic Hash Functions
md5 | 240c1d2b05fdde3e0bfcdfc3c3359e3e |
---|---|
sha1 | 9c9b99433f1df62b32b0047255dfa3b4f6bff8ac |
sha256 | 9ac5569c05ca8fb99ee4d0a1815e7927180d0fb68e2028a7583606c3a2a805c1 |
sha512 | eb16f17f212d8cfba4040cf16b44a79076b58cc75e936f753a289126876ed208293c8d45a437c9fd4cc014ca0ea7ba031961b821c9be6172b25c870a06347156 |
ripemd-160 | 2bde5a0a1b487496cf56436c9bf4151cb0d70f31 |
81361260 as geometric shapes
Circle
Radius = nDiameter | 162722520 |
---|---|
Circumference | 511207873.40562 |
Area | 2.0796258351101E+16 |
Sphere
Radius = nVolume | 2.2560130436414E+24 |
---|---|
Surface area | 8.3185033404403E+16 |
Circumference | 511207873.40562 |
Square
Length = nPerimeter | 325445040 |
---|---|
Area | 6619654628787600 |
Diagonal | 115062197.34376 |
Cube
Length = nSurface area | 39717927772725600 |
---|---|
Volume | 5.3858344136299E+23 |
Space diagonal | 140921836.08782 |
Equilateral Triangle
Length = nPerimeter | 244083780 |
---|---|
Area | 2.8663945364047E+15 |
Altitude | 70460918.043911 |
Triangular Pyramid
Length = nSurface area | 2.8663945364047E+15 |
---|---|
Volume | 6.3472667270426E+22 |
Height | 38354065.781255 |