20091 (number)

20091 is an odd 5-digits composite number following 20090 and preceding 20092. In scientific notation, it is written as 2.0091 × 10^4. The sum of its digits is 12. It has a total of 2 prime factors and 4 positive divisors. There are 12960 positive integers (up to 20091) that are relatively prime to 20091.

Interesting facts

Basic properties

Name

Name twenty thousand ninety-one

Notation

Scientific notation 2.0091 × 10^4
Engineering notation 2.0091 × 10^3

Prime Factorization of 20091

Prime Factorization 111 × 181

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20091
Product of the distinct prime numbers

The prime factorization of 20091 is 111 × 181. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20091)

Multiplication

n×y
n×2 40182
n×3 60273
n×4 80364
n×5 100455

Division

n÷y
n÷2 10045.5
n÷3 6697
n÷3 5022.75
n÷5 4018.2

Exponentiation

ny
n2 403648281
n3 8109697613571
n4 162931934754254961
n5 3.2734655011477E+21

Nth Root

y√n
2√n 141.74272468102
3√n 27.185282551344
4√n 11.905575361192
5√n 7.254380160582

Divisors of 20091

1, 111, 181, 20091

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 -20090
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 20091 can be divided by 4 positive divisors. The sum of these divisors (counting 20091) is 1, the average is 0.25.

Base conversion 20091

Base System Value
2 Binary 100111001111011
3 Ternary 1000120010
4 Quaternary 10321323
5 Quinary 1120331
6 Senary 233003
8 Octal 47173
10 Decimal 20091
12 Duodecimal b763
16 Hexadecimal 4e7b
20 Vigesimal 2a4b
36 Base36 fi3

Cryptographic Hash Functions

md5 8ac462c3beb1a7bb86506bb0218c55af
sha1 10dbd6fad7eacbda634bb022bea6b04ec43332e0
sha256 033e5efa2816c5edb6b0b8673a7ba12a5a1a40236e3665917d29e45f948f367c
sha512 f1850e3eea5510dfcf8779a28f6bcfce5e8cb52683cacdd1f1725dd9474e91a434252b346db2ef6744867ab4a85392c9267cd12c68ad12b3054e1981bb8232c6
ripemd-160 acfa17ea3d6331f49b8cfbf4d9f0a808b9b35d14

20091 as geometric shapes

Circle

Radius = n
Diameter 40182
Circumference 126235.47600655
Area 1268098474.2237

Sphere

Radius = n
Volume 33969821927506
Surface area 5072393896.895
Circumference 126235.47600655

Square

Length = n
Perimeter 80364
Area 403648281
Diagonal 28412.964681638

Cube

Length = n
Surface area 2421889686
Volume 8109697613571
Space diagonal 34798.632774866

Equilateral Triangle

Length = n
Perimeter 60273
Area 174784832.76996
Altitude 17399.316387433

Triangular Pyramid

Length = n
Surface area 174784832.76996
Volume 955737029321.4
Height 9470.9882272126