20784945 (number)

20784945 is an odd 8-digits composite number following 20784944 and preceding 20784946. In scientific notation, it is written as 2.0784945 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 11016000 positive integers (up to 20784945) that are relatively prime to 20784945.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-four thousand nine hundred forty-five

Notation

Scientific notation 2.0784945 × 10^7
Engineering notation 2.0784945 × 10^6

Prime Factorization of 20784945

Prime Factorization 5 × 3 × 163 × 8501

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20784945
Product of the distinct prime numbers

The prime factorization of 20784945 is 5 × 3 × 163 × 8501. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 37, 13, 160, 159, 8214, 3290, 24051, 95182, 629876, 659587, 746472, 97586, 95932325, 71072280, 435023037, 363443826, 3447817620, 6023692049

Basic calculations (n = 20784945)

Multiplication

n×y
n×2 41569890
n×3 62354835
n×4 83139780
n×5 103924725

Division

n÷y
n÷2 10392472.5
n÷3 6928315
n÷3 5196236.25
n÷5 4156989

Exponentiation

ny
n2 432013938653025
n3 8.9793859541365E+21
n4 1.866360431905E+29
n5 3.8792198927322E+36

Nth Root

y√n
2√n 4559.0508880687
3√n 274.94740591992
4√n 67.520744131479
5√n 29.077012016017

Divisors of 20784945

1, 3, 5, 15, 163, 489, 815, 2445, 8501, 25503, 42505, 127515, 1385663, 4156989, 6928315, 20784945

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 -20784944
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 20784945 can be divided by 16 positive divisors. The sum of these divisors (counting 20784945) is 1, the average is 0.0625.

Base conversion 20784945

Base System Value
2 Binary 1001111010010011100110001
3 Ternary 1110002222120210
4 Quaternary 1033102130301
5 Quinary 20310104240
6 Senary 2021254333
8 Octal 117223461
10 Decimal 20784945
12 Duodecimal 6b643a9
16 Hexadecimal 13d2731
20 Vigesimal 69i275
36 Base36 cdhrl

Cryptographic Hash Functions

md5 9d76ec3720f1d7ed2f466f68c10b09c0
sha1 166a658a6de49861a71f954b7a6ac986daf1cf14
sha256 a0bee002dca8ce48a1cc71ae5166d478cb62ad5422b78f4535910c1006249e9d
sha512 79dce4dde3c078240e111418a81362fd5fb5f5a15279d411557fe39c044f8d92d7297173bf7f7567a40e388e296794468e8094a600a3d6393f56aa083cb94769
ripemd-160 c78047336096aa495a79f6c27c3a1dc141297fe0

20784945 as geometric shapes

Circle

Radius = n
Diameter 41569890
Circumference 130595661.03454
Area 1.3572118159207E+15

Sphere

Radius = n
Volume 3.7612763929683E+22
Surface area 5.4288472636829E+15
Circumference 130595661.03454

Square

Length = n
Perimeter 83139780
Area 432013938653025
Diagonal 29394351.112179

Cube

Length = n
Surface area 2592083631918150
Volume 8.9793859541365E+21
Space diagonal 36000580.772525

Equilateral Triangle

Length = n
Perimeter 62354835
Area 1.8706752283125E+14
Altitude 18000290.386262

Triangular Pyramid

Length = n
Surface area 1.8706752283125E+14
Volume 1.0582307831769E+21
Height 9798117.037393