20121288 (number)
20121288 is an even 8-digits composite number following 20121287 and preceding 20121289. In scientific notation, it is written as 2.0121288 × 10^7. The sum of its digits is 24. It has a total of 7 prime factors and 64 positive divisors. There are 6050880 positive integers (up to 20121288) that are relatively prime to 20121288.
Interesting facts
- 20121288 has 64 divisors, whose sum is 55296000
- The reverse of 20121288 is 88212102
- Previous prime number is 383
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 24
- Digital Root 6
Name
Name | twenty million one hundred twenty-one thousand two hundred eighty-eight |
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Notation
Scientific notation | 2.0121288 × 10^7 |
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Engineering notation | 2.0121288 × 10^6 |
Prime Factorization of 20121288
Prime Factorization 2 × 2 × 2 × 3 × 11 × 383 × 199
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 5030322 | Product of the distinct prime numbers |
The prime factorization of 20121288 is 2 × 2 × 2 × 3 × 11 × 383 × 199. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20121288)
Multiplication
n×yn×2 | 40242576 |
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n×3 | 60363864 |
n×4 | 80485152 |
n×5 | 100606440 |
Division
n÷yn÷2 | 10060644 |
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n÷3 | 6707096 |
n÷3 | 5030322 |
n÷5 | 4024257.6 |
Exponentiation
nyn2 | 404866230778944 |
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n3 | 8.1464300309776E+21 |
n4 | 1.6391666482515E+29 |
n5 | 3.2982144209463E+36 |
Nth Root
y√n2√n | 4485.6758688073 |
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3√n | 271.98936665467 |
4√n | 66.975188456676 |
5√n | 28.888909970014 |
Divisors of 20121288
64 divisors
τ | Total Divisors | 64 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -20121287 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.015625 | 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 | 64 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 20121288 can be divided by 64 positive divisors. The sum of these divisors (counting 20121288) is 1, the average is 0.015625.
Base conversion 20121288
Base | System | Value |
---|---|---|
2 | Binary | 1001100110000011011001000 |
3 | Ternary | 1101212021012220 |
4 | Quaternary | 1030300123020 |
5 | Quinary | 20122340123 |
6 | Senary | 1555134040 |
8 | Octal | 114603310 |
10 | Decimal | 20121288 |
12 | Duodecimal | 68a4320 |
16 | Hexadecimal | 13306c8 |
20 | Vigesimal | 65f348 |
36 | Base36 | bz9oo |
Cryptographic Hash Functions
md5 | 0e55622a7cdf97191ee8abf0ea60d36c |
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sha1 | c6bd9c80e8590848a925ad8a8dee6acbb1328a5d |
sha256 | 4643c0faa142e22c5806ff8e956aee3f796b97df1e851d37ece31bf631637f16 |
sha512 | 3ea4c4443292650ce2527f796eb205a98f2949991e05678bbee6775297fd5aae9c1f868bab2bc258a1eac6f63bbc9fc64460e45466ff4f2dd9aef3be93d782ec |
ripemd-160 | 2fea5c0768ba4223f1208749feb8fae95915715c |
20121288 as geometric shapes
Circle
Radius = nDiameter | 40242576 |
---|---|
Circumference | 126425781.12313 |
Area | 1.2719247763017E+15 |
Sphere
Radius = nVolume | 3.4123686317737E+22 |
---|---|
Surface area | 5.0876991052069E+15 |
Circumference | 126425781.12313 |
Square
Length = nPerimeter | 80485152 |
---|---|
Area | 404866230778944 |
Diagonal | 28455798.382015 |
Cube
Length = nSurface area | 2429197384673664 |
---|---|
Volume | 8.1464300309776E+21 |
Space diagonal | 34851093.129726 |
Equilateral Triangle
Length = nPerimeter | 60363864 |
---|---|
Area | 1.7531222049451E+14 |
Altitude | 17425546.564863 |
Triangular Pyramid
Length = nSurface area | 1.7531222049451E+14 |
---|---|
Volume | 9.6006598622767E+20 |
Height | 9485266.1273383 |