21085380 (number)
21085380 is an even 8-digits composite number following 21085379 and preceding 21085381. In scientific notation, it is written as 2.1085380 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 5622624 positive integers (up to 21085380) that are relatively prime to 21085380.
Interesting facts
- 21085380 has 48 divisors, whose sum is 65600640
- The reverse of 21085380 is 08358012
- Previous prime number is 3
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
Name | twenty-one million eighty-five thousand three hundred eighty |
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Notation
Scientific notation | 2.1085380 × 10^7 |
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Engineering notation | 2.1085380 × 10^6 |
Prime Factorization of 21085380
Prime Factorization 2 × 2 × 5 × 9 × 3 × 39047
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 10542690 | Product of the distinct prime numbers |
The prime factorization of 21085380 is 2 × 2 × 5 × 9 × 3 × 39047. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21085380)
Multiplication
n×yn×2 | 42170760 |
---|---|
n×3 | 63256140 |
n×4 | 84341520 |
n×5 | 105426900 |
Division
n÷yn÷2 | 10542690 |
---|---|
n÷3 | 7028460 |
n÷3 | 5271345 |
n÷5 | 4217076 |
Exponentiation
nyn2 | 444593249744400 |
---|---|
n3 | 9.3744176162956E+21 |
n4 | 1.9766315771829E+29 |
n5 | 4.16780279249E+36 |
Nth Root
y√n2√n | 4591.8819671242 |
---|---|
3√n | 276.26581197073 |
4√n | 67.763426471247 |
5√n | 29.160588638967 |
Divisors of 21085380
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 | -21085379 | 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 21085380 can be divided by 48 positive divisors. The sum of these divisors (counting 21085380) is 1, the average is 0.020833333333333.
Base conversion 21085380
Base | System | Value |
---|---|---|
2 | Binary | 1010000011011110011000100 |
3 | Ternary | 1110200020201000 |
4 | Quaternary | 1100123303010 |
5 | Quinary | 20344213010 |
6 | Senary | 2031533300 |
8 | Octal | 120336304 |
10 | Decimal | 21085380 |
12 | Duodecimal | 708a230 |
16 | Hexadecimal | 141bcc4 |
20 | Vigesimal | 6bfd90 |
36 | Base36 | cjxl0 |
Cryptographic Hash Functions
md5 | 98601a5eb359751b354b7af67a72971f |
---|---|
sha1 | 4526dbc0f6421c0402f27038c23948cdd8256830 |
sha256 | 3c4da3510b285db8cd2fc2c1214678e6a8f0c98d2346b2aaa5a14f1ddd334909 |
sha512 | 10f33d7ac8ddb66aa2e6c3825a42655476a8245793b397394fd525bdd0c59c53704455df23d839637ca6f9e1b2c28a7a54e2ae2f950e033f0c7078624525cdbd |
ripemd-160 | eb695bb8a1998b63b8728b11d62ac4afa9f37129 |
21085380 as geometric shapes
Circle
Radius = nDiameter | 42170760 |
---|---|
Circumference | 132483349.8123 |
Area | 1.3967308872326E+15 |
Sphere
Radius = nVolume | 3.9267468686716E+22 |
---|---|
Surface area | 5.5869235489305E+15 |
Circumference | 132483349.8123 |
Square
Length = nPerimeter | 84341520 |
---|---|
Area | 444593249744400 |
Diagonal | 29819230.36379 |
Cube
Length = nSurface area | 2667559498466400 |
---|---|
Volume | 9.3744176162956E+21 |
Space diagonal | 36520949.456897 |
Equilateral Triangle
Length = nPerimeter | 63256140 |
---|---|
Area | 1.9251452431486E+14 |
Altitude | 18260474.728448 |
Triangular Pyramid
Length = nSurface area | 1.9251452431486E+14 |
---|---|
Volume | 1.1047857110262E+21 |
Height | 9939743.4545968 |