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

20809947 (number)

20809947 is an odd 8-digits composite number following 20809946 and preceding 20809948. In scientific notation, it is written as 2.0809947 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 13498272 positive integers (up to 20809947) that are relatively prime to 20809947.

Interesting facts

20809947 has 8 divisors, whose sum is 28496656
The reverse of 20809947 is 74990802
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twenty million eight hundred nine thousand nine hundred forty-seven

Notation

Scientific notation	2.0809947 × 10^7
Engineering notation	2.0809947 × 10^6

Prime Factorization of 20809947

Prime Factorization 3 × 37 × 187477

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20809947	Product of the distinct prime numbers

The prime factorization of 20809947 is 3 × 37 × 187477. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 66, 8, 376, 910, 3659, 4130, 89657, 25381, 725271, 18820, 8894501, 2555038, 19654651, 94227141, 276551684, 82137102, 9996727999, 6084345226

Basic calculations (n = 20809947)

Multiplication

n×y

n×2	41619894
n×3	62429841
n×4	83239788
n×5	104049735

Division

n÷y

n÷2	10404973.5
n÷3	6936649
n÷3	5202486.75
n÷5	4161989.4

Exponentiation

n^y

n²	433053894142809
n³	9.0118285852555E+21
n⁴	1.8753567523225E+29
n⁵	3.9026074621924E+36

Nth Root

^y√n

²√n	4561.792082066
³√n	275.0576055631
⁴√n	67.541039983598
⁵√n	29.084003941319

Divisors of 20809947

1, 3, 37, 111, 187477, 562431, 6936649, 20809947

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	-20809946	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 20809947 can be divided by 8 positive divisors. The sum of these divisors (counting 20809947) is 1, the average is 0.125.

Base conversion 20809947

Base	System	Value
2	Binary	1001111011000100011011011
3	Ternary	1110011020212210
4	Quaternary	1033120203123
5	Quinary	20311404242
6	Senary	2022010203
8	Octal	117304333
10	Decimal	20809947
12	Duodecimal	6b76963
16	Hexadecimal	13d88db
20	Vigesimal	6a14h7
36	Base36	ce123

Cryptographic Hash Functions

md5	a4bbd845b9e8d27a4f71dfdf69985ea4
sha1	3430990a3262021a08b5866e1202b4184da9edb1
sha256	d131109b9a9e3ddb45fa59e106d3b562d2ed505023ead1e4dde722dcf619b110
sha512	bb9b257a59a154fe7b6ac73f04ec8b6d44132aabd09368ecf454c0de21347d3ecf466f527f9e53a6f6e79c4ec70c37046b5732939763cae4ae4794b79afd0a0b
ripemd-160	5dc9dbf11a115b0210aef50beaa831e70ce7684d

20809947 as geometric shapes

Circle

Radius = n

Diameter	41619894
Circumference	130752753.23359
Area	1.3604789324475E+15

Sphere

Radius = n

Volume	3.7748659305132E+22
Surface area	5.44191572979E+15
Circumference	130752753.23359

Square

Length = n

Perimeter	83239788
Area	433053894142809
Diagonal	29429709.279665

Cube

Length = n

Surface area	2598323364856854
Volume	9.0118285852555E+21
Space diagonal	36043885.506816

Equilateral Triangle

Length = n

Perimeter	62429841
Area	1.8751783676772E+14
Altitude	18021942.753408

Triangular Pyramid

Length = n

Surface area	1.8751783676772E+14
Volume	1.0620541839208E+21
Height	9809903.0932218