20402821 (number)

20402821 is an odd 8-digits composite number following 20402820 and preceding 20402822. In scientific notation, it is written as 2.0402821 × 10^7. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 20393644 positive integers (up to 20402821) that are relatively prime to 20402821.

Interesting facts

Basic properties

Name

Name twenty million four hundred two thousand eight hundred twenty-one

Notation

Scientific notation 2.0402821 × 10^7
Engineering notation 2.0402821 × 10^6

Prime Factorization of 20402821

Prime Factorization 3779 × 5399

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20402821
Product of the distinct prime numbers

The prime factorization of 20402821 is 3779 × 5399. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20402821)

Multiplication

n×y
n×2 40805642
n×3 61208463
n×4 81611284
n×5 102014105

Division

n÷y
n÷2 10201410.5
n÷3 6800940.3333333
n÷3 5100705.25
n÷5 4080564.2

Exponentiation

ny
n2 416275104758041
n3 8.4931864491346E+21
n4 1.7328496284132E+29
n5 3.5355020788431E+36

Nth Root

y√n
2√n 4516.948195408
3√n 273.25203593849
4√n 67.208244995745
5√n 28.969302843377

Divisors of 20402821

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 -20402820
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 20402821 can be divided by 4 positive divisors. The sum of these divisors (counting 20402821) is 1, the average is 0.25.

Base conversion 20402821

Base System Value
2 Binary 1001101110101001010000101
3 Ternary 1102101120102001
4 Quaternary 1031311022011
5 Quinary 20210342241
6 Senary 2005145301
8 Octal 115651205
10 Decimal 20402821
12 Duodecimal 69bb231
16 Hexadecimal 1375285
20 Vigesimal 67a711
36 Base36 c5ax1

Cryptographic Hash Functions

md5 428519dbcf797ffff033ed36783e2e8a
sha1 929680f0a1babfd2be1f412e14215a9fcda0d5e8
sha256 c02a851579c4c30aa1d4e78b7eab6c52f3f4e683b43fc017ef33b0e133f9d12a
sha512 e055f11e6bd9f7fdb3a31b55017e7e58d77d5457a88de470ce5a34280ba9bbebf371ce1d0f7dd329599023953187b7380d66e1d357b97728346a3238540e724a
ripemd-160 d4ba459bccc5a0731f8a008a483328cb7eca313a

20402821 as geometric shapes

Circle

Radius = n
Diameter 40805642
Circumference 128194705.13222
Area 1.3077668109802E+15

Sphere

Radius = n
Volume 3.5576176205559E+22
Surface area 5.2310672439207E+15
Circumference 128194705.13222

Square

Length = n
Perimeter 81611284
Area 416275104758041
Diagonal 28853946.168871

Cube

Length = n
Surface area 2497650628548246
Volume 8.4931864491346E+21
Space diagonal 35338722.589733

Equilateral Triangle

Length = n
Perimeter 61208463
Area 1.8025240784175E+14
Altitude 17669361.294867

Triangular Pyramid

Length = n
Surface area 1.8025240784175E+14
Volume 1.0009316220108E+21
Height 9617982.0562902