20101809 (number)

20101809 is an odd 8-digits composite number following 20101808 and preceding 20101810. In scientific notation, it is written as 2.0101809 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors. There are 10378368 positive integers (up to 20101809) that are relatively prime to 20101809.

Interesting facts

Basic properties

Name

Name twenty million one hundred one thousand eight hundred nine

Notation

Scientific notation 2.0101809 × 10^7
Engineering notation 2.0101809 × 10^6

Prime Factorization of 20101809

Prime Factorization 21 × 7 × 13 × 67 × 157

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20101809
Product of the distinct prime numbers

The prime factorization of 20101809 is 21 × 7 × 13 × 67 × 157. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 6, 58, 80, 839, 943, 5287, 8225, 32526, 64803, 310337, 636968, 3854931, 3202922, 56209722, 23796771, 326628110, 990036937, 2233619240, 5821395006

Basic calculations (n = 20101809)

Multiplication

n×y
n×2 40203618
n×3 60305427
n×4 80407236
n×5 100509045

Division

n÷y
n÷2 10050904.5
n÷3 6700603
n÷3 5025452.25
n÷5 4020361.8

Exponentiation

ny
n2 404082725072481
n3 8.1227937596065E+21
n4 1.63282848702E+29
n5 3.2822806375835E+36

Nth Root

y√n
2√n 4483.5040983588
3√n 271.90156923589
4√n 66.958973247495
5√n 28.883314452374

Divisors of 20101809

1, 7, 13, 21, 67, 91, 147, 157, 273, 469, 871, 1099, 1407, 1911, 2041, 3297, 6097, 9849, 10519, 14287, 18291, 23079, 42861, 73633, 128037, 136747, 220899, 300027, 957229, 1546293, 2871687, 20101809

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20101808
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20101809 can be divided by 32 positive divisors. The sum of these divisors (counting 20101809) is 1, the average is 0.03125.

Base conversion 20101809

Base System Value
2 Binary 1001100101011101010110001
3 Ternary 1101211021111110
4 Quaternary 1030223222301
5 Quinary 20121224214
6 Senary 1554503533
8 Octal 114535261
10 Decimal 20101809
12 Duodecimal 6894ba9
16 Hexadecimal 132bab1
20 Vigesimal 65cea9
36 Base36 byunl

Cryptographic Hash Functions

md5 cc14bfa30c633edb5c4707ea91736be4
sha1 4632607e642e9da946f9b91042aa7fd437190ef3
sha256 063205a352588937d637ceaa132a3342e9afe5523d875a7d8d0449624ca606e2
sha512 b672cde821c7749d1c4b294ba1546bdcb68ed789c60cf192412c4ad2014a04c018bfdd89fa928595b5da9360a50ab3a8b21a552f40f74471075210b75cd9b47b
ripemd-160 de3e6e592a30ccfa9d1c15b910bbdc05fda45161

20101809 as geometric shapes

Circle

Radius = n
Diameter 40203618
Circumference 126303390.95653
Area 1.2694633205303E+15

Sphere

Radius = n
Volume 3.402467893574E+22
Surface area 5.077853282121E+15
Circumference 126303390.95653

Square

Length = n
Perimeter 80407236
Area 404082725072481
Diagonal 28428250.916034

Cube

Length = n
Surface area 2424496350434886
Volume 8.1227937596065E+21
Space diagonal 34817354.512045

Equilateral Triangle

Length = n
Perimeter 60305427
Area 1.7497295257161E+14
Altitude 17408677.256023

Triangular Pyramid

Length = n
Surface area 1.7497295257161E+14
Volume 9.5728042493292E+20
Height 9476083.6386778