21120816 (number)
21120816 is an even 8-digits composite number following 21120815 and preceding 21120817. In scientific notation, it is written as 2.1120816 × 10^7. The sum of its digits is 21. It has a total of 7 prime factors and 40 positive divisors. There are 6797056 positive integers (up to 21120816) that are relatively prime to 21120816.
Interesting facts
- 21120816 has 40 divisors, whose sum is 56447280
- The reverse of 21120816 is 61802112
- Previous prime number is 29
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 21
- Digital Root 3
Name
Name | twenty-one million one hundred twenty thousand eight hundred sixteen |
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Notation
Scientific notation | 2.1120816 × 10^7 |
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Engineering notation | 2.1120816 × 10^6 |
Prime Factorization of 21120816
Prime Factorization 2 × 2 × 2 × 2 × 3 × 29 × 15173
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 2640102 | Product of the distinct prime numbers |
The prime factorization of 21120816 is 2 × 2 × 2 × 2 × 3 × 29 × 15173. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21120816)
Multiplication
n×yn×2 | 42241632 |
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n×3 | 63362448 |
n×4 | 84483264 |
n×5 | 105604080 |
Division
n÷yn÷2 | 10560408 |
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n÷3 | 7040272 |
n÷3 | 5280204 |
n÷5 | 4224163.2 |
Exponentiation
nyn2 | 446088868505856 |
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n3 | 9.4217609113604E+21 |
n4 | 1.9899527860483E+29 |
n5 | 4.2029426642815E+36 |
Nth Root
y√n2√n | 4595.7388959774 |
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3√n | 276.4204890696 |
4√n | 67.791879277517 |
5√n | 29.170383488968 |
Divisors of 21120816
40 divisors
τ | Total Divisors | 40 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21120815 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.025 | 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 | 40 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21120816 can be divided by 40 positive divisors. The sum of these divisors (counting 21120816) is 1, the average is 0.025.
Base conversion 21120816
Base | System | Value |
---|---|---|
2 | Binary | 1010000100100011100110000 |
3 | Ternary | 1110202001022110 |
4 | Quaternary | 1100210130300 |
5 | Quinary | 20401331231 |
6 | Senary | 2032405320 |
8 | Octal | 120443460 |
10 | Decimal | 21120816 |
12 | Duodecimal | 70a6840 |
16 | Hexadecimal | 1424730 |
20 | Vigesimal | 6c020g |
36 | Base36 | ckoxc |
Cryptographic Hash Functions
md5 | 9a56e995e265e662cd0808ff5d039756 |
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sha1 | e87a8ee54ca88949fc5f7edbeaa1b0c3abe50b55 |
sha256 | 65ce124fecae22a0f7c166ffabbca0b651abe1d11dace42fa919814ea912f19f |
sha512 | 1e33896a276ddfb13d07b9d119f887f319aff59349092747a0a969d37dfa5ab6db7857d81974a180a548f85f924648ede2b804f21052d776d538b0521e9ad83e |
ripemd-160 | 092b3c4c34c099ae2795e5d74ddf1c6f35f12b2c |
21120816 as geometric shapes
Circle
Radius = nDiameter | 42241632 |
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Circumference | 132706000.76684 |
Area | 1.4014295121462E+15 |
Sphere
Radius = nVolume | 3.9465779817346E+22 |
---|---|
Surface area | 5.6057180485847E+15 |
Circumference | 132706000.76684 |
Square
Length = nPerimeter | 84483264 |
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Area | 446088868505856 |
Diagonal | 29869344.435587 |
Cube
Length = nSurface area | 2676533211035136 |
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Volume | 9.4217609113604E+21 |
Space diagonal | 36582326.409314 |
Equilateral Triangle
Length = nPerimeter | 63362448 |
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Area | 1.9316214623576E+14 |
Altitude | 18291163.204657 |
Triangular Pyramid
Length = nSurface area | 1.9316214623576E+14 |
---|---|
Volume | 1.1103651718569E+21 |
Height | 9956448.1451956 |