20409821 (number)

20409821 is an odd 8-digits composite number following 20409820 and preceding 20409822. In scientific notation, it is written as 2.0409821 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 19935132 positive integers (up to 20409821) that are relatively prime to 20409821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0409821 × 10^7
Engineering notation 2.0409821 × 10^6

Prime Factorization of 20409821

Prime Factorization 43 × 474647

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20409821
Product of the distinct prime numbers

The prime factorization of 20409821 is 43 × 474647. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 96, 72, 35, 449, 976, 4163, 15097, 20714, 37829, 727328, 5530489, 7190459, 26372754, 77191654, 898266915, 854084041, 4437003797, 3816147210

Basic calculations (n = 20409821)

Multiplication

n×y
n×2 40819642
n×3 61229463
n×4 81639284
n×5 102049105

Division

n÷y
n÷2 10204910.5
n÷3 6803273.6666667
n÷3 5102455.25
n÷5 4081964.2

Exponentiation

ny
n2 416560793252041
n3 8.5019312258922E+21
n4 1.7352289447477E+29
n5 3.5415712156319E+36

Nth Root

y√n
2√n 4517.7229884091
3√n 273.28328236177
4√n 67.214008870243
5√n 28.971290385161

Divisors of 20409821

1, 43, 474647, 20409821

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 -20409820
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 20409821 can be divided by 4 positive divisors. The sum of these divisors (counting 20409821) is 1, the average is 0.25.

Base conversion 20409821

Base System Value
2 Binary 1001101110110110111011101
3 Ternary 1102101221000022
4 Quaternary 1031312313131
5 Quinary 20211103241
6 Senary 2005241525
8 Octal 115666735
10 Decimal 20409821
12 Duodecimal 6a032a5
16 Hexadecimal 1376ddd
20 Vigesimal 67b4b1
36 Base36 c5gbh

Cryptographic Hash Functions

md5 e95a1fa09649517b0157db4b455f844d
sha1 430bfb6b0624920b47f0f8be47f5cb1a7723542d
sha256 a56cdba29889ec91155875c4a433b4dbd7a590178da42f9507bffd9c7e7c5566
sha512 87c3c7fe0d923bc4c5a1b994c07ef7f988d317ee975c90ee4f185a5673aa50476bf54c4a25e5517c8f28df07bd57ab19754c48b528de922724b12f3956391f5a
ripemd-160 bcfa1b452db6e9b4bd7e238016ccedfa6b703c5c

20409821 as geometric shapes

Circle

Radius = n
Diameter 40819642
Circumference 128238687.42937
Area 1.3086643278541E+15

Sphere

Radius = n
Volume 3.5612806240785E+22
Surface area 5.2346573114166E+15
Circumference 128238687.42937

Square

Length = n
Perimeter 81639284
Area 416560793252041
Diagonal 28863845.663807

Cube

Length = n
Surface area 2499364759512246
Volume 8.5019312258922E+21
Space diagonal 35350846.945386

Equilateral Triangle

Length = n
Perimeter 61229463
Area 1.8037611458843E+14
Altitude 17675423.472693

Triangular Pyramid

Length = n
Surface area 1.8037611458843E+14
Volume 1.001962203835E+21
Height 9621281.8879357