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

20809988 (number)

20809988 is an even 8-digits composite number following 20809987 and preceding 20809989. In scientific notation, it is written as 2.0809988 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 6 positive divisors. There are 10404992 positive integers (up to 20809988) that are relatively prime to 20809988.

Interesting facts

20809988 has 6 divisors, whose sum is 36417486
The reverse of 20809988 is 88990802
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty million eight hundred nine thousand nine hundred eighty-eight

Notation

Scientific notation	2.0809988 × 10^7
Engineering notation	2.0809988 × 10^6

Prime Factorization of 20809988

Prime Factorization 2 × 2 × 5202497

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10404994	Product of the distinct prime numbers

The prime factorization of 20809988 is 2 × 2 × 5202497. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 5, 10, 76, 573, 965, 1025, 7284, 78023, 96428, 686199, 882426, 1232465, 281271, 29295612, 63848951, 132599869, 988443743, 1875245498, 3385295450

Basic calculations (n = 20809988)

Multiplication

n×y

n×2	41619976
n×3	62429964
n×4	83239952
n×5	104049940

Division

n÷y

n÷2	10404994
n÷3	6936662.6666667
n÷3	5202497
n÷5	4161997.6

Exponentiation

n^y

n²	433055600560144
n³	9.0118818509894E+21
n⁴	1.8753715317651E+29
n⁵	3.9026459071573E+36

Nth Root

^y√n

²√n	4561.7965759117
³√n	275.05778620355
⁴√n	67.541073251109
⁵√n	29.084015401638

Divisors of 20809988

1, 2, 4, 5202497, 10404994, 20809988

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20809987	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20809988 can be divided by 6 positive divisors. The sum of these divisors (counting 20809988) is 1, the average is 0.16666666666667.

Base conversion 20809988

Base	System	Value
2	Binary	1001111011000100100000100
3	Ternary	1110011020221022
4	Quaternary	1033120210010
5	Quinary	20311404423
6	Senary	2022010312
8	Octal	117304404
10	Decimal	20809988
12	Duodecimal	6b76998
16	Hexadecimal	13d8904
20	Vigesimal	6a14j8
36	Base36	ce138

Cryptographic Hash Functions

md5	a0c1d85ee65516a5252eda7eb924126e
sha1	611db06801d8bbaa03d3f6f299dff9254e1cb9dc
sha256	596c3d16ec48e6b95ec5fccc0f6882ba39f1761ed3b009a2e4bbfbace8e2f3b7
sha512	7aeb0e159bb5ad85d85ca174bc7d3f6f80e8b4fe7ee335c6f0699883ff92540b4fb7e123c11759059955793f59a6018dd360292c3908350848c7e8923b1235ca
ripemd-160	2875a86e51796f5821b19889612b7d431e61be60

20809988 as geometric shapes

Circle

Radius = n

Diameter	41619976
Circumference	130753010.84418
Area	1.3604842933157E+15

Sphere

Radius = n

Volume	3.7748882424117E+22
Surface area	5.4419371732627E+15
Circumference	130753010.84418

Square

Length = n

Perimeter	83239952
Area	433055600560144
Diagonal	29429767.262421

Cube

Length = n

Surface area	2598333603360864
Volume	9.0118818509894E+21
Space diagonal	36043956.520899

Equilateral Triangle

Length = n

Perimeter	62429964
Area	1.8751857566811E+14
Altitude	18021978.260449

Triangular Pyramid

Length = n

Surface area	1.8751857566811E+14
Volume	1.0620604613478E+21
Height	9809922.4208071