Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20421805 (number)

20421805 is an odd 8-digits composite number following 20421804 and preceding 20421806. In scientific notation, it is written as 2.0421805 × 10^7. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 16320000 positive integers (up to 20421805) that are relatively prime to 20421805.

Interesting facts

20421805 has 8 divisors, whose sum is 24532344
The reverse of 20421805 is 50812402
Previous prime number is 3001

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

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

Notation

Scientific notation	2.0421805 × 10^7
Engineering notation	2.0421805 × 10^6

Prime Factorization of 20421805

Prime Factorization 5 × 3001 × 1361

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20421805	Product of the distinct prime numbers

The prime factorization of 20421805 is 5 × 3001 × 1361. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 88, 39, 658, 114, 1256, 2826, 6632, 43083, 491569, 589388, 616881, 1573637, 40405862, 49957326, 746815377, 258597486, 2672519830, 7843593253

Basic calculations (n = 20421805)

Multiplication

n×y

n×2	40843610
n×3	61265415
n×4	81687220
n×5	102109025

Division

n÷y

n÷2	10210902.5
n÷3	6807268.3333333
n÷3	5105451.25
n÷5	4084361

Exponentiation

n^y

n²	417050119458025
n³	8.5169162147985E+21
n⁴	1.7393080213995E+29
n⁵	3.5519809247957E+36

Nth Root

^y√n

²√n	4519.0491256458
³√n	273.33675965696
⁴√n	67.223873182418
⁵√n	28.974691791069

Divisors of 20421805

1, 5, 1361, 3001, 6805, 15005, 4084361, 20421805

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20421804	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421805 can be divided by 8 positive divisors. The sum of these divisors (counting 20421805) is 1, the average is 0.125.

Base conversion 20421805

Base	System	Value
2	Binary	1001101111001110010101101
3	Ternary	1102102112110011
4	Quaternary	1031321302231
5	Quinary	20211444210
6	Senary	2005413221
8	Octal	115716255
10	Decimal	20421805
12	Duodecimal	6a0a211
16	Hexadecimal	1379cad
20	Vigesimal	67cea5
36	Base36	c5pkd

Cryptographic Hash Functions

md5	bb44c6186eb5f0144c1872559153629b
sha1	5ac71913d924b913bf0e5c282cd4c798cef9108a
sha256	0173e7e61c2f64f6f09820e62a5bb31eb8b5d60d51fe4beae98c2293021839ec
sha512	e9c30aa40f8ef4169fd74d169fda9a0a8065ec52e5ac4875dc12421b4a9f823c562022d13d9e82610cab2090307facf7a12b07d36e33b3ab76465d325a260a9d
ripemd-160	5d4ec5fabce8f4eaa066027f04befdb9eaebe241

20421805 as geometric shapes

Circle

Radius = n

Diameter	40843610
Circumference	128313985.12209
Area	1.3102015914681E+15

Sphere

Radius = n

Volume	3.5675575215534E+22
Surface area	5.2408063658723E+15
Circumference	128313985.12209

Square

Length = n

Perimeter	81687220
Area	417050119458025
Diagonal	28880793.599139

Cube

Length = n

Surface area	2502300716748150
Volume	8.5169162147985E+21
Space diagonal	35371603.842264

Equilateral Triangle

Length = n

Perimeter	61265415
Area	1.8058799905099E+14
Altitude	17685801.921132

Triangular Pyramid

Length = n

Surface area	1.8058799905099E+14
Volume	1.0037282017136E+21
Height	9626931.1997129