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

20681821 (number)

20681821 is an odd 8-digits prime number following 20681820 and preceding 20681822. In scientific notation, it is written as 2.0681821 × 10^7. The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors. There are 20681820 positive integers (up to 20681821) that are relatively prime to 20681821.

Interesting facts

20681821 has 2 divisors, whose sum is 20681822
The reverse of 20681821 is 12818602
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.0681821 × 10^7
Engineering notation	2.0681821 × 10^6

Prime Factorization of 20681821

Prime Factorization 20681821

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20681821	Product of the distinct prime numbers

The prime factorization of 20681821 is 20681821. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 8, 58, 79, 192, 302, 9205, 3844, 84535, 9066, 844221, 440593, 7241211, 5671458, 7873240, 5867796, 750098631, 112234706, 7154979626, 2795489331

Basic calculations (n = 20681821)

Multiplication

n×y

n×2	41363642
n×3	62045463
n×4	82727284
n×5	103409105

Division

n÷y

n÷2	10340910.5
n÷3	6893940.3333333
n÷3	5170455.25
n÷5	4136364.2

Exponentiation

n^y

n²	427737719876041
n³	8.8463949574244E+21
n⁴	1.8295955700475E+29
n⁵	3.7839368082116E+36

Nth Root

^y√n

²√n	4547.7270146745
³√n	274.49193686135
⁴√n	67.436837223245
⁵√n	29.048101605785

Divisors of 20681821

1, 20681821

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20681822	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10340911	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4547.7271246195	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999032967	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20681821 can be divided by 2 positive divisors. The sum of these divisors (counting 20681821) is 20681822, the average is 10340911.

Base conversion 20681821

Base	System	Value
2	Binary	1001110111001010001011101
3	Ternary	1102220202010101
4	Quaternary	1032321101131
5	Quinary	20243304241
6	Senary	2015141101
8	Octal	116712135
10	Decimal	20681821
12	Duodecimal	6b14791
16	Hexadecimal	13b945d
20	Vigesimal	6954b1
36	Base36	cba71

Cryptographic Hash Functions

md5	65ee72480679232295be6327ac35d3cd
sha1	5d43a4cd04eedd75b783b9477125bbd78d1f9ded
sha256	4bc2ea849faea95219260906acb624922722bbf3f1e287f987c834f9a7ac1cc0
sha512	8880c6c1cfd3181bfe9f9c67ca25acd01a8522405401a6320db9dd5809602f1e16f72a6cb7c696848b0100a1859a0fe1644ff0cad3abe0e94eb463120510ea3f
ripemd-160	76fbb469422a090c5e7e9391de8744b1df160528

20681821 as geometric shapes

Circle

Radius = n

Diameter	41363642
Circumference	129947713.83292
Area	1.3437776784258E+15

Sphere

Radius = n

Volume	3.7055692545331E+22
Surface area	5.3751107137033E+15
Circumference	129947713.83292

Square

Length = n

Perimeter	82727284
Area	427737719876041
Diagonal	29248511.752773

Cube

Length = n

Surface area	2566426319256246
Volume	8.8463949574244E+21
Space diagonal	35821964.765045

Equilateral Triangle

Length = n

Perimeter	62045463
Area	1.8521586578474E+14
Altitude	17910982.382522

Triangular Pyramid

Length = n

Surface area	1.8521586578474E+14
Volume	1.0425576439082E+21
Height	9749503.9175909