21107988 (number)
21107988 is an even 8-digits composite number following 21107987 and preceding 21107989. In scientific notation, it is written as 2.1107988 × 10^7. The sum of its digits is 36. It has a total of 7 prime factors and 72 positive divisors. There are 6336000 positive integers (up to 21107988) that are relatively prime to 21107988.
Interesting facts
- 21107988 has 72 divisors, whose sum is 58758336
- The reverse of 21107988 is 88970112
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 36
- Digital Root 9
Name
Name | twenty-one million one hundred seven thousand nine hundred eighty-eight |
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Notation
Scientific notation | 2.1107988 × 10^7 |
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Engineering notation | 2.1107988 × 10^6 |
Prime Factorization of 21107988
Prime Factorization 2 × 2 × 3 × 3 × 151 × 11 × 353
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 3517998 | Product of the distinct prime numbers |
The prime factorization of 21107988 is 2 × 2 × 3 × 3 × 151 × 11 × 353. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21107988)
Multiplication
n×yn×2 | 42215976 |
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n×3 | 63323964 |
n×4 | 84431952 |
n×5 | 105539940 |
Division
n÷yn÷2 | 10553994 |
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n÷3 | 7035996 |
n÷3 | 5276997 |
n÷5 | 4221597.6 |
Exponentiation
nyn2 | 445547157408144 |
---|---|
n3 | 9.4046040520052E+21 |
n4 | 1.9851226947448E+29 |
n5 | 4.19019460192E+36 |
Nth Root
y√n2√n | 4594.3430433523 |
---|---|
3√n | 276.36451521955 |
4√n | 67.781583364158 |
5√n | 29.166839226075 |
Divisors of 21107988
72 divisors
τ | Total Divisors | 72 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21107987 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.013888888888889 | 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 | 72 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21107988 can be divided by 72 positive divisors. The sum of these divisors (counting 21107988) is 1, the average is 0.013888888888889.
Base conversion 21107988
Base | System | Value |
---|---|---|
2 | Binary | 1010000100001010100010100 |
3 | Ternary | 1110201101201100 |
4 | Quaternary | 1100201110110 |
5 | Quinary | 20400423423 |
6 | Senary | 2032230100 |
8 | Octal | 120412424 |
10 | Decimal | 21107988 |
12 | Duodecimal | 709b330 |
16 | Hexadecimal | 1421514 |
20 | Vigesimal | 6bi9j8 |
36 | Base36 | ckf10 |
Cryptographic Hash Functions
md5 | 45ebe91c6d9071db402b87bf885f34a3 |
---|---|
sha1 | c93334b2fec3bfbdec5dfcccae0cb7914a2ea6c2 |
sha256 | 4db31eb444e2a4b17e201930c2e65601919809a4ba47da1a12717e07b4ef01e4 |
sha512 | 4f9c25cebcdf41ebe1ece69c8799dc7af81a883d928fbc1403d85398ca8dcb297bb519f2f81d84b564ba81d7d9bdf4008e3f619ce0d1305b4f422c593d09cbff |
ripemd-160 | f1b59725fa57713cb1b131dbdcac064511a0ce25 |
21107988 as geometric shapes
Circle
Radius = nDiameter | 42215976 |
---|---|
Circumference | 132625400.06572 |
Area | 1.3997276765412E+15 |
Sphere
Radius = nVolume | 3.9393913332934E+22 |
---|---|
Surface area | 5.598910706165E+15 |
Circumference | 132625400.06572 |
Square
Length = nPerimeter | 84431952 |
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Area | 445547157408144 |
Diagonal | 29851202.904009 |
Cube
Length = nSurface area | 2673282944448864 |
---|---|
Volume | 9.4046040520052E+21 |
Space diagonal | 36560107.661554 |
Equilateral Triangle
Length = nPerimeter | 63323964 |
---|---|
Area | 1.929275784497E+14 |
Altitude | 18280053.830777 |
Triangular Pyramid
Length = nSurface area | 1.929275784497E+14 |
---|---|
Volume | 1.1083432165912E+21 |
Height | 9950400.9680028 |