21031648 (number)
21031648 is an even 8-digits composite number following 21031647 and preceding 21031649. In scientific notation, it is written as 2.1031648 × 10^7. The sum of its digits is 25. It has a total of 8 prime factors and 48 positive divisors. There are 9472000 positive integers (up to 21031648) that are relatively prime to 21031648.
Interesting facts
- 21031648 has 48 divisors, whose sum is 45586800
- The reverse of 21031648 is 84613012
- Previous prime number is 149
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 25
- Digital Root 7
Name
Name | twenty-one million thirty-one thousand six hundred forty-eight |
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Notation
Scientific notation | 2.1031648 × 10^7 |
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Engineering notation | 2.1031648 × 10^6 |
Prime Factorization of 21031648
Prime Factorization 2 × 2 × 2 × 2 × 2 × 11 × 149 × 401
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 1314478 | Product of the distinct prime numbers |
The prime factorization of 21031648 is 2 × 2 × 2 × 2 × 2 × 11 × 149 × 401. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21031648)
Multiplication
n×yn×2 | 42063296 |
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n×3 | 63094944 |
n×4 | 84126592 |
n×5 | 105158240 |
Division
n÷yn÷2 | 10515824 |
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n÷3 | 7010549.3333333 |
n÷3 | 5257912 |
n÷5 | 4206329.6 |
Exponentiation
nyn2 | 442330217595904 |
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n3 | 9.3029334362405E+21 |
n4 | 1.9565602139844E+29 |
n5 | 4.1149685711325E+36 |
Nth Root
y√n2√n | 4586.0274748414 |
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3√n | 276.03094241063 |
4√n | 67.720214669192 |
5√n | 29.145711446076 |
Divisors of 21031648
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 | -21031647 | 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 21031648 can be divided by 48 positive divisors. The sum of these divisors (counting 21031648) is 1, the average is 0.020833333333333.
Base conversion 21031648
Base | System | Value |
---|---|---|
2 | Binary | 1010000001110101011100000 |
3 | Ternary | 1110120111222221 |
4 | Quaternary | 1100032223200 |
5 | Quinary | 20341003043 |
6 | Senary | 2030440424 |
8 | Octal | 120165340 |
10 | Decimal | 21031648 |
12 | Duodecimal | 7063114 |
16 | Hexadecimal | 140eae0 |
20 | Vigesimal | 6b8j28 |
36 | Base36 | cis4g |
Cryptographic Hash Functions
md5 | d3b95ac1705dcd6b3c993375b2f6ab3c |
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sha1 | c6e7edd79c3decdd169f57c1616ba482ecabc4b3 |
sha256 | 3d0fc9d012e95f490b08873ebc931df59a8f6e8605da6c282e8bdc33f89a7f67 |
sha512 | d433077cd8c6843f4d3eb7b7a2854421457fd04e78a8d0759a336ece7c63b4e37cd6f4827c160d4779fe01d12717ac8b6f4091a3817dd7c78110d2b212272fe6 |
ripemd-160 | 3985820cebe9ca505f0e67c84307d0919e948e0d |
21031648 as geometric shapes
Circle
Radius = nDiameter | 42063296 |
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Circumference | 132145741.69937 |
Area | 1.3896213620601E+15 |
Sphere
Radius = nVolume | 3.8968036453504E+22 |
---|---|
Surface area | 5.5584854482403E+15 |
Circumference | 132145741.69937 |
Square
Length = nPerimeter | 84126592 |
---|---|
Area | 442330217595904 |
Diagonal | 29743241.840657 |
Cube
Length = nSurface area | 2653981305575424 |
---|---|
Volume | 9.3029334362405E+21 |
Space diagonal | 36427882.902904 |
Equilateral Triangle
Length = nPerimeter | 63094944 |
---|---|
Area | 1.9153460264978E+14 |
Altitude | 18213941.451452 |
Triangular Pyramid
Length = nSurface area | 1.9153460264978E+14 |
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Volume | 1.0963612196154E+21 |
Height | 9914413.9468857 |