20180640 (number)
20180640 is an even 8-digits composite number following 20180639 and preceding 20180641. In scientific notation, it is written as 2.0180640 × 10^7. The sum of its digits is 21. It has a total of 8 prime factors and 48 positive divisors. There are 5381376 positive integers (up to 20180640) that are relatively prime to 20180640.
Interesting facts
- 20180640 has 48 divisors, whose sum is 63570528
- The reverse of 20180640 is 04608102
- Previous prime number is 5
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 21
- Digital Root 3
Name
Name | twenty million one hundred eighty thousand six hundred forty |
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Notation
Scientific notation | 2.0180640 × 10^7 |
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Engineering notation | 2.0180640 × 10^6 |
Prime Factorization of 20180640
Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 5 × 42043
Composite numberω | Distinct Factors | 4 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 1261290 | Product of the distinct prime numbers |
The prime factorization of 20180640 is 2 × 2 × 2 × 2 × 2 × 3 × 5 × 42043. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20180640)
Multiplication
n×yn×2 | 40361280 |
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n×3 | 60541920 |
n×4 | 80722560 |
n×5 | 100903200 |
Division
n÷yn÷2 | 10090320 |
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n÷3 | 6726880 |
n÷3 | 5045160 |
n÷5 | 4036128 |
Exponentiation
nyn2 | 407258230809600 |
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n3 | 8.2187317430054E+21 |
n4 | 1.6585926656217E+29 |
n5 | 3.3471461491551E+36 |
Nth Root
y√n2√n | 4492.2867228172 |
---|---|
3√n | 272.25653421604 |
4√n | 67.024523294218 |
5√n | 28.90593268854 |
Divisors of 20180640
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 | -20180639 | 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 20180640 can be divided by 48 positive divisors. The sum of these divisors (counting 20180640) is 1, the average is 0.020833333333333.
Base conversion 20180640
Base | System | Value |
---|---|---|
2 | Binary | 1001100111110111010100000 |
3 | Ternary | 1101222021122010 |
4 | Quaternary | 1030332322200 |
5 | Quinary | 20131240030 |
6 | Senary | 2000312520 |
8 | Octal | 114767240 |
10 | Decimal | 20180640 |
12 | Duodecimal | 6912740 |
16 | Hexadecimal | 133eea0 |
20 | Vigesimal | 662bc0 |
36 | Base36 | c0jhc |
Cryptographic Hash Functions
md5 | 8a384a994be6eaaef00adbc00f0f9b15 |
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sha1 | 521e2b8faf09df58c8c13c0b5bdbf105b39c9354 |
sha256 | 5584d9dc79271cdb09e6d4389baa36fcb11010ccfbc6d4fe9e7c22406b273f58 |
sha512 | 5c7e535938a5be88fe778029cc6e11dddaf2c287198f79a6092bbbe2b6f1a61dd01fa07f0ac4c403bdf8c3364a9cc9dbe2be37876728a0cf6835ad47018e2238 |
ripemd-160 | 8872c0ec174a84f24824b467b62a21f02444077b |
20180640 as geometric shapes
Circle
Radius = nDiameter | 40361280 |
---|---|
Circumference | 126798700.73748 |
Area | 1.2794394660254E+15 |
Sphere
Radius = nVolume | 3.4426543020868E+22 |
---|---|
Surface area | 5.1177578641017E+15 |
Circumference | 126798700.73748 |
Square
Length = nPerimeter | 80722560 |
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Area | 407258230809600 |
Diagonal | 28539734.785369 |
Cube
Length = nSurface area | 2443549384857600 |
---|---|
Volume | 8.2187317430054E+21 |
Space diagonal | 34953893.809257 |
Equilateral Triangle
Length = nPerimeter | 60541920 |
---|---|
Area | 1.7634798689071E+14 |
Altitude | 17476946.904628 |
Triangular Pyramid
Length = nSurface area | 1.7634798689071E+14 |
---|---|
Volume | 9.6858682470538E+20 |
Height | 9513244.9284563 |