20828081 (number)

20828081 is an odd 8-digits composite number following 20828080 and preceding 20828082. In scientific notation, it is written as 2.0828081 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 20818164 positive integers (up to 20828081) that are relatively prime to 20828081.

Interesting facts

Basic properties

Name

Name twenty million eight hundred twenty-eight thousand eighty-one

Notation

Scientific notation 2.0828081 × 10^7
Engineering notation 2.0828081 × 10^6

Prime Factorization of 20828081

Prime Factorization 6899 × 3019

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20828081
Product of the distinct prime numbers

The prime factorization of 20828081 is 6899 × 3019. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20828081)

Multiplication

n×y
n×2 41656162
n×3 62484243
n×4 83312324
n×5 104140405

Division

n÷y
n÷2 10414040.5
n÷3 6942693.6666667
n÷3 5207020.25
n÷5 4165616.2

Exponentiation

ny
n2 433808958142561
n3 9.0354081187189E+21
n4 1.8819021216473E+29
n5 3.9196409823743E+36

Nth Root

y√n
2√n 4563.7792453185
3√n 275.13747836762
4√n 67.555749165549
5√n 29.08907099495

Divisors of 20828081

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20828080
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20828081 can be divided by 4 positive divisors. The sum of these divisors (counting 20828081) is 1, the average is 0.25.

Base conversion 20828081

Base System Value
2 Binary 1001111011100111110110001
3 Ternary 1110012011202102
4 Quaternary 1033130332301
5 Quinary 20312444311
6 Senary 2022230145
8 Octal 117347661
10 Decimal 20828081
12 Duodecimal 6b85355
16 Hexadecimal 13dcfb1
20 Vigesimal 6a3a41
36 Base36 cef1t

Cryptographic Hash Functions

md5 6822fbb1e91612e48ef28df913ad6d2a
sha1 313ac14b447bdc17396d8bcbac0d4bdae404aca9
sha256 01f7679d3139c2f4a2adad11e3e60f644bf7fe4d36d7f14771e9a211a6a4694f
sha512 3ba923fe39ebbe9657ac58f8a916ceee13b9da5bdd5ffb6c635715b2824e37ab629763edbdf274499e5dcd0ab5c76dbda013833ca7f8779140a1bdc8821e38dc
ripemd-160 629f0fd0ccab89ea49b4217c030138c1863a41a0

20828081 as geometric shapes

Circle

Radius = n
Diameter 41656162
Circumference 130866692.51595
Area 1.3628510359621E+15

Sphere

Radius = n
Volume 3.7847429023937E+22
Surface area 5.4514041438484E+15
Circumference 130866692.51595

Square

Length = n
Perimeter 83312324
Area 433808958142561
Diagonal 29455354.628405

Cube

Length = n
Surface area 2602853748855366
Volume 9.0354081187189E+21
Space diagonal 36075294.51616

Equilateral Triangle

Length = n
Perimeter 62484243
Area 1.8784478907036E+14
Altitude 18037647.25808

Triangular Pyramid

Length = n
Surface area 1.8784478907036E+14
Volume 1.064833058589E+21
Height 9818451.5428018