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

20809918 (number)

20809918 is an even 8-digits composite number following 20809917 and preceding 20809919. In scientific notation, it is written as 2.0809918 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 10404958 positive integers (up to 20809918) that are relatively prime to 20809918.

Interesting facts

20809918 has 4 divisors, whose sum is 31214880
The reverse of 20809918 is 81990802
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty million eight hundred nine thousand nine hundred eighteen

Notation

Scientific notation	2.0809918 × 10^7
Engineering notation	2.0809918 × 10^6

Prime Factorization of 20809918

Prime Factorization 2 × 10404959

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20809918	Product of the distinct prime numbers

The prime factorization of 20809918 is 2 × 10404959. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 2, 76, 71, 8, 987, 7201, 1220, 78080, 18621, 264854, 835838, 8362269, 2329121, 51625839, 36572384, 711732182, 63954231, 1620136544, 6866754748

Basic calculations (n = 20809918)

Multiplication

n×y

n×2	41619836
n×3	62429754
n×4	83239672
n×5	104049590

Division

n÷y

n÷2	10404959
n÷3	6936639.3333333
n÷3	5202479.5
n÷5	4161983.6

Exponentiation

n^y

n²	433052687166724
n³	9.0117909096192E+21
n⁴	1.8753462986232E+29
n⁵	3.9025802695952E+36

Nth Root

^y√n

²√n	4561.7889034895
³√n	275.05747779288
⁴√n	67.54101645289
⁵√n	29.083995835228

Divisors of 20809918

1, 2, 10404959, 20809918

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	-20809917	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 20809918 can be divided by 4 positive divisors. The sum of these divisors (counting 20809918) is 1, the average is 0.25.

Base conversion 20809918

Base	System	Value
2	Binary	1001111011000100010111110
3	Ternary	1110011020211201
4	Quaternary	1033120202332
5	Quinary	20311404133
6	Senary	2022010114
8	Octal	117304276
10	Decimal	20809918
12	Duodecimal	6b7693a
16	Hexadecimal	13d88be
20	Vigesimal	6a14fi
36	Base36	ce11a

Cryptographic Hash Functions

md5	8a3a68de696bb8ce63eddef52e9141ff
sha1	6cc79471cbf360839efad5eadfff6296f706b9c1
sha256	677a94aca7f331ef2178f06b8d693203dd92a6e4c37616ac64651e2c9a3237df
sha512	a39ea4d7bef65e962e0e1553a6833ae09afb373ab9fbf969d60a965e5c6190fceda9bbc9b6062190f3773f14c11971c8565111a66535dda1ea9099a3774bb265
ripemd-160	50b0245c4d9b0c699522800ffe0036ced2aa1414

20809918 as geometric shapes

Circle

Radius = n

Diameter	41619836
Circumference	130752571.02121
Area	1.3604751406203E+15

Sphere

Radius = n

Volume	3.7748501489796E+22
Surface area	5.4419005624812E+15
Circumference	130752571.02121

Square

Length = n

Perimeter	83239672
Area	433052687166724
Diagonal	29429668.267472

Cube

Length = n

Surface area	2598316123000344
Volume	9.0117909096192E+21
Space diagonal	36043835.277342

Equilateral Triangle

Length = n

Perimeter	62429754
Area	1.8751731413175E+14
Altitude	18021917.638671

Triangular Pyramid

Length = n

Surface area	1.8751731413175E+14
Volume	1.0620497438045E+21
Height	9809889.4224907