20998728 (number)

20998728 is an even 8-digits composite number following 20998727 and preceding 20998729. In scientific notation, it is written as 2.0998728 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 24 positive divisors. There are 6999552 positive integers (up to 20998728) that are relatively prime to 20998728.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-eight thousand seven hundred twenty-eight

Notation

Scientific notation 2.0998728 × 10^7
Engineering notation 2.0998728 × 10^6

Prime Factorization of 20998728

Prime Factorization 2 × 2 × 2 × 3 × 3 × 291649

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1749894
Product of the distinct prime numbers

The prime factorization of 20998728 is 2 × 2 × 2 × 3 × 3 × 291649. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 9, 75, 47, 646, 390, 4865, 7451, 34748, 7072, 272876, 832313, 2520222, 8954501, 76134993, 83756300, 29556863, 473929154, 8856428731, 9342247404

Basic calculations (n = 20998728)

Multiplication

n×y
n×2 41997456
n×3 62996184
n×4 83994912
n×5 104993640

Division

n÷y
n÷2 10499364
n÷3 6999576
n÷3 5249682
n÷5 4199745.6

Exponentiation

ny
n2 440946577617984
n3 9.2593172459309E+21
n4 1.9443388431301E+29
n5 4.0828642506724E+36

Nth Root

y√n
2√n 4582.436906276
3√n 275.88684712635
4√n 67.6936991623
5√n 29.136581604059

Divisors of 20998728

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 291649, 583298, 874947, 1166596, 1749894, 2333192, 2624841, 3499788, 5249682, 6999576, 10499364, 20998728

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20998727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20998728 can be divided by 24 positive divisors. The sum of these divisors (counting 20998728) is 1, the average is 0.041666666666667.

Base conversion 20998728

Base System Value
2 Binary 1010000000110101001001000
3 Ternary 1110111211211200
4 Quaternary 1100012221020
5 Quinary 20333424403
6 Senary 2030024200
8 Octal 120065110
10 Decimal 20998728
12 Duodecimal 7048060
16 Hexadecimal 1406a48
20 Vigesimal 6b4gg8
36 Base36 ci2q0

Cryptographic Hash Functions

md5 08f79048a0aab2349a9d943df0e5e8b7
sha1 3f18dd109ab262059878e6dda3edd1b9f235e7d3
sha256 ad3e85b98e1c6cc918d74982eb63aaa40d8a746b4e22648490e3cb9d037b890a
sha512 30c2a3b138fdccedc5492df427f8c18f8fbbed998f3f148583d3dcba03d93810694412b04106d4230b77d689530b712b25c583484563d8be0ef44d153f5cea6d
ripemd-160 2a2a5f7962ca43de5858f31bb3b685292b3505ed

20998728 as geometric shapes

Circle

Radius = n
Diameter 41997456
Circumference 131938899.23906
Area 1.3852745288702E+15

Sphere

Radius = n
Volume 3.8785337382765E+22
Surface area 5.5410981154809E+15
Circumference 131938899.23906

Square

Length = n
Perimeter 83994912
Area 440946577617984
Diagonal 29696685.930184

Cube

Length = n
Surface area 2645679465707904
Volume 9.2593172459309E+21
Space diagonal 36370863.790319

Equilateral Triangle

Length = n
Perimeter 62996184
Area 1.9093546896449E+14
Altitude 18185431.89516

Triangular Pyramid

Length = n
Surface area 1.9093546896449E+14
Volume 1.0912210022926E+21
Height 9898895.3100612