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

20421845 (number)

20421845 is an odd 8-digits composite number following 20421844 and preceding 20421846. In scientific notation, it is written as 2.0421845 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 15376384 positive integers (up to 20421845) that are relatively prime to 20421845.

Interesting facts

20421845 has 8 divisors, whose sum is 25947864
The reverse of 20421845 is 54812402
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.0421845 × 10^7
Engineering notation	2.0421845 × 10^6

Prime Factorization of 20421845

Prime Factorization 5 × 17 × 240257

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20421845	Product of the distinct prime numbers

The prime factorization of 20421845 is 5 × 17 × 240257. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 19, 32, 268, 759, 9932, 5267, 23043, 37127, 337525, 107283, 6976910, 4986210, 71209188, 12923328, 488887444, 794463912, 7112427144, 7692686828

Basic calculations (n = 20421845)

Multiplication

n×y

n×2	40843690
n×3	61265535
n×4	81687380
n×5	102109225

Division

n÷y

n÷2	10210922.5
n÷3	6807281.6666667
n÷3	5105461.25
n÷5	4084369

Exponentiation

n^y

n²	417051753204025
n³	8.5169662609109E+21
n⁴	1.7393216485055E+29
n⁵	3.5520157110924E+36

Nth Root

^y√n

²√n	4519.0535513534
³√n	273.33693811757
⁴√n	67.223906100088
⁵√n	28.974703141552

Divisors of 20421845

1, 5, 17, 85, 240257, 1201285, 4084369, 20421845

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	-20421844	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 20421845 can be divided by 8 positive divisors. The sum of these divisors (counting 20421845) is 1, the average is 0.125.

Base conversion 20421845

Base	System	Value
2	Binary	1001101111001110011010101
3	Ternary	1102102112111122
4	Quaternary	1031321303111
5	Quinary	20211444340
6	Senary	2005413325
8	Octal	115716325
10	Decimal	20421845
12	Duodecimal	6a0a245
16	Hexadecimal	1379cd5
20	Vigesimal	67cec5
36	Base36	c5plh

Cryptographic Hash Functions

md5	abfb9e06052a1451a53957be162df302
sha1	43bd5e762201519daa4481d0ce57e9de5f1555f9
sha256	c0b7b883304c0f8320a37c4deb6953222b34a3a28dffcc2f88f56abf16ea0621
sha512	995d90a60646f11ccf7cb6a3d1b33cc9eb4588fd090b3aa680bf2fedad94d50af26c08de94ffc0b137888c4f0ab1abb6b5304ce5e6363965f3d9f1acb2088106
ripemd-160	cd9b9228db6a835f704eafd9e73813096ea1a4b8

20421845 as geometric shapes

Circle

Radius = n

Diameter	40843690
Circumference	128314236.4495
Area	1.3102067240325E+15

Sphere

Radius = n

Volume	3.56757848482E+22
Surface area	5.24082689613E+15
Circumference	128314236.4495

Square

Length = n

Perimeter	81687380
Area	417051753204025
Diagonal	28880850.167681

Cube

Length = n

Surface area	2502310519224150
Volume	8.5169662609109E+21
Space diagonal	35371673.124296

Equilateral Triangle

Length = n

Perimeter	61265535
Area	1.8058870648376E+14
Altitude	17685836.562148

Triangular Pyramid

Length = n

Surface area	1.8058870648376E+14
Volume	1.0037340997045E+21
Height	9626950.0558937