20809747 (number)

20809747 is an odd 8-digits composite number following 20809746 and preceding 20809748. In scientific notation, it is written as 2.0809747 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 17836920 positive integers (up to 20809747) that are relatively prime to 20809747.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0809747 × 10^7
Engineering notation 2.0809747 × 10^6

Prime Factorization of 20809747

Prime Factorization 7 × 2972821

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20809747
Product of the distinct prime numbers

The prime factorization of 20809747 is 7 × 2972821. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20809747)

Multiplication

n×y
n×2 41619494
n×3 62429241
n×4 83238988
n×5 104048735

Division

n÷y
n÷2 10404873.5
n÷3 6936582.3333333
n÷3 5202436.75
n÷5 4161949.4

Exponentiation

ny
n2 433045570204009
n3 9.0115687554162E+21
n4 1.8752846587332E+29
n5 3.9024199301218E+36

Nth Root

y√n
2√n 4561.7701608038
3√n 275.05672438678
4√n 67.54087770235
5√n 29.083948037062

Divisors of 20809747

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 -20809746
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 20809747 can be divided by 4 positive divisors. The sum of these divisors (counting 20809747) is 1, the average is 0.25.

Base conversion 20809747

Base System Value
2 Binary 1001111011000100000010011
3 Ternary 1110011020121101
4 Quaternary 1033120200103
5 Quinary 20311402442
6 Senary 2022005231
8 Octal 117304023
10 Decimal 20809747
12 Duodecimal 6b76817
16 Hexadecimal 13d8813
20 Vigesimal 6a1477
36 Base36 ce0wj

Cryptographic Hash Functions

md5 a870c6bffc1f9efb277ab1f13ab747e2
sha1 25a263f46fe4034178fdf87da7365adc6dc320bf
sha256 47cfa285ac104642d396aaf8cc8e5728ee76b2fa6ca59f8c6bdeca183fb87c5e
sha512 5aad6e4ca074787c246667a53f3fe817a4842e3beb10e554a804d67cd9eedcaa992c32ad4b40451d7b5c14d72afcfa12e8dbaccb47ec68800a4a6df39c862316
ripemd-160 cbe0a842abfab6cf2531fa53aa17beed6778b9ab

20809747 as geometric shapes

Circle

Radius = n
Diameter 41619494
Circumference 130751496.59652
Area 1.3604527820225E+15

Sphere

Radius = n
Volume 3.7747570932446E+22
Surface area 5.4418111280901E+15
Circumference 130751496.59652

Square

Length = n
Perimeter 83238988
Area 433045570204009
Diagonal 29429426.436953

Cube

Length = n
Surface area 2598273421224054
Volume 9.0115687554162E+21
Space diagonal 36043539.096654

Equilateral Triangle

Length = n
Perimeter 62429241
Area 1.8751423239649E+14
Altitude 18021769.548327

Triangular Pyramid

Length = n
Surface area 1.8751423239649E+14
Volume 1.0620235626806E+21
Height 9809808.8123176