20091805 (number)

20091805 is an odd 8-digits composite number following 20091804 and preceding 20091806. In scientific notation, it is written as 2.0091805 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 16073440 positive integers (up to 20091805) that are relatively prime to 20091805.

Interesting facts

Basic properties

Name

Name twenty million ninety-one thousand eight hundred five

Notation

Scientific notation 2.0091805 × 10^7
Engineering notation 2.0091805 × 10^6

Prime Factorization of 20091805

Prime Factorization 5 × 4018361

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20091805
Product of the distinct prime numbers

The prime factorization of 20091805 is 5 × 4018361. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20091805)

Multiplication

n×y
n×2 40183610
n×3 60275415
n×4 80367220
n×5 100459025

Division

n÷y
n÷2 10045902.5
n÷3 6697268.3333333
n÷3 5022951.25
n÷5 4018361

Exponentiation

ny
n2 403680628158025
n3 8.1106724632285E+21
n4 1.6295804955006E+29
n5 3.2741213547401E+36

Nth Root

y√n
2√n 4482.3883142807
3√n 271.85645630338
4√n 66.950640880283
5√n 28.880439027431

Divisors of 20091805

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 -20091804
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 20091805 can be divided by 4 positive divisors. The sum of these divisors (counting 20091805) is 1, the average is 0.25.

Base conversion 20091805

Base System Value
2 Binary 1001100101001001110011101
3 Ternary 1101210202202221
4 Quaternary 1030221032131
5 Quinary 20120414210
6 Senary 1554345341
8 Octal 114511635
10 Decimal 20091805
12 Duodecimal 688b251
16 Hexadecimal 132939d
20 Vigesimal 65b9a5
36 Base36 bymxp

Cryptographic Hash Functions

md5 617694a6658870bd30bd4e2120a97dc0
sha1 2041e89c6f170233949eb311f52d644f4f424ce4
sha256 7751b71657fa170c5050696af0ad865474b85a8a696277050ed41f6a10781d34
sha512 e958bfad66c1f3cfd32b62a2a4ad5344e74dc6b37d31be0e83a57c775fe87d7934aa5dde47c014f3ede6555dda58ddaed11048a397a9a89607d857fb52986a58
ripemd-160 465ed95c4e922d5e8042b495b380fb3b05c3700b

20091805 as geometric shapes

Circle

Radius = n
Diameter 40183610
Circumference 126240533.97072
Area 1.2682000958178E+15

Sphere

Radius = n
Volume 3.3973905368202E+22
Surface area 5.0728003832711E+15
Circumference 126240533.97072

Square

Length = n
Perimeter 80367220
Area 403680628158025
Diagonal 28414103.123556

Cube

Length = n
Surface area 2422083768948150
Volume 8.1106724632285E+21
Space diagonal 34800027.075766

Equilateral Triangle

Length = n
Perimeter 60275415
Area 1.7479883950025E+14
Altitude 17400013.537883

Triangular Pyramid

Length = n
Surface area 1.7479883950025E+14
Volume 9.5585191645532E+20
Height 9471367.7078519