20687428 (number)

20687428 is an even 8-digits composite number following 20687427 and preceding 20687429. In scientific notation, it is written as 2.0687428 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 9799272 positive integers (up to 20687428) that are relatively prime to 20687428.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0687428 × 10^7
Engineering notation 2.0687428 × 10^6

Prime Factorization of 20687428

Prime Factorization 2 × 2 × 19 × 272203

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10343714
Product of the distinct prime numbers

The prime factorization of 20687428 is 2 × 2 × 19 × 272203. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 26, 96, 267, 293, 3724, 8696, 15949, 49479, 31868, 931868, 3408006, 5757802, 27437622, 64421772, 442519820, 323033591, 4813809703, 701614459

Basic calculations (n = 20687428)

Multiplication

n×y
n×2 41374856
n×3 62062284
n×4 82749712
n×5 103437140

Division

n÷y
n÷2 10343714
n÷3 6895809.3333333
n÷3 5171857
n÷5 4137485.6

Exponentiation

ny
n2 427969677255184
n3 8.8535918843999E+21
n4 1.8315804464991E+29
n5 3.7890688613157E+36

Nth Root

y√n
2√n 4548.3434347024
3√n 274.51674024183
4√n 67.441407419347
5√n 29.049676467556

Divisors of 20687428

1, 2, 4, 19, 38, 76, 272203, 544406, 1088812, 5171857, 10343714, 20687428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20687427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20687428 can be divided by 12 positive divisors. The sum of these divisors (counting 20687428) is 1, the average is 0.083333333333333.

Base conversion 20687428

Base System Value
2 Binary 1001110111010101001000100
3 Ternary 1102221000211001
4 Quaternary 1032322221010
5 Quinary 20243444203
6 Senary 2015223044
8 Octal 116725104
10 Decimal 20687428
12 Duodecimal 6b17a84
16 Hexadecimal 13baa44
20 Vigesimal 695ib8
36 Base36 cbeis

Cryptographic Hash Functions

md5 24d3ee4f42e71cc372fcb1c1dd35609f
sha1 eedf259a1460429730aba3268323ac0aab00e7d9
sha256 0d80e01adf3a9242bef296525360eb679aea32137928228fe4e8d40a759409f0
sha512 4a36c69c9064af0fe3a295a28584cd78c628b1fb2b2c8f7556b77bcb508a9c8df4866a9a4a7e10afc79d964e228fb5511a1479d2206a577c14cd648b10cee32f
ripemd-160 fe4fa898955c295644fcceca3800d75e0993383c

20687428 as geometric shapes

Circle

Radius = n
Diameter 41374856
Circumference 129982943.65294
Area 1.3445063940241E+15

Sphere

Radius = n
Volume 3.708583896255E+22
Surface area 5.3780255760963E+15
Circumference 129982943.65294

Square

Length = n
Perimeter 82749712
Area 427969677255184
Diagonal 29256441.248217

Cube

Length = n
Surface area 2567818063531104
Volume 8.8535918843999E+21
Space diagonal 35831676.373923

Equilateral Triangle

Length = n
Perimeter 62062284
Area 1.8531630627621E+14
Altitude 17915838.186962

Triangular Pyramid

Length = n
Surface area 1.8531630627621E+14
Volume 1.0434058098862E+21
Height 9752147.082739