20809784 (number)

20809784 is an even 8-digits composite number following 20809783 and preceding 20809785. In scientific notation, it is written as 2.0809784 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors. There are 10234080 positive integers (up to 20809784) that are relatively prime to 20809784.

Interesting facts

Basic properties

Name

Name twenty million eight hundred nine thousand seven hundred eighty-four

Notation

Scientific notation 2.0809784 × 10^7
Engineering notation 2.0809784 × 10^6

Prime Factorization of 20809784

Prime Factorization 2 × 2 × 2 × 61 × 42643

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5202446
Product of the distinct prime numbers

The prime factorization of 20809784 is 2 × 2 × 2 × 61 × 42643. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 3, 25, 88, 282, 495, 4924, 4622, 61754, 32794, 580479, 163939, 8620951, 3455428, 19775811, 22831894, 319811265, 427621576, 4398614521, 1099644926

Basic calculations (n = 20809784)

Multiplication

n×y
n×2 41619568
n×3 62429352
n×4 83239136
n×5 104048920

Division

n÷y
n÷2 10404892
n÷3 6936594.6666667
n÷3 5202446
n÷5 4161956.8

Exponentiation

ny
n2 433047110126656
n3 9.0116168235599E+21
n4 1.8752979958905E+29
n5 3.9024546230114E+36

Nth Root

y√n
2√n 4561.7742162453
3√n 275.05688740483
4√n 67.540907724469
5√n 29.083958379382

Divisors of 20809784

1, 2, 4, 8, 61, 122, 244, 488, 42643, 85286, 170572, 341144, 2601223, 5202446, 10404892, 20809784

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20809783
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20809784 can be divided by 16 positive divisors. The sum of these divisors (counting 20809784) is 1, the average is 0.0625.

Base conversion 20809784

Base System Value
2 Binary 1001111011000100000111000
3 Ternary 1110011020122202
4 Quaternary 1033120200320
5 Quinary 20311403114
6 Senary 2022005332
8 Octal 117304070
10 Decimal 20809784
12 Duodecimal 6b76848
16 Hexadecimal 13d8838
20 Vigesimal 6a1494
36 Base36 ce0xk

Cryptographic Hash Functions

md5 36097daf4b1a073e21da3bf8b211fe26
sha1 9b0a5e8d306b9c2edce503b59624dad51e75ffa1
sha256 af661abab4315af178f0c46ad54aef488b931ede02b72c3e4f1892b7080264ad
sha512 16ce6a11a9d967f2547d94ea131327b579c221ac58c4a635e5d484f861ffbc28621986fec2610826e9fd04b58441d0635456f2fd26258675e1dd10a8bd41951e
ripemd-160 2afa5730057de464ab6c82c8acf7e0bde9e563a2

20809784 as geometric shapes

Circle

Radius = n
Diameter 41619568
Circumference 130751729.07438
Area 1.3604576198322E+15

Sphere

Radius = n
Volume 3.7747772279816E+22
Surface area 5.4418304793288E+15
Circumference 130751729.07438

Square

Length = n
Perimeter 83239136
Area 433047110126656
Diagonal 29429478.762855

Cube

Length = n
Surface area 2598282660759936
Volume 9.0116168235599E+21
Space diagonal 36043603.182534

Equilateral Triangle

Length = n
Perimeter 62429352
Area 1.8751489920256E+14
Altitude 18021801.591267

Triangular Pyramid

Length = n
Surface area 1.8751489920256E+14
Volume 1.0620292275657E+21
Height 9809826.2542849