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.
20091 has 4 divisors, whose sum is 20384
The reverse of 20091 is 19002
Previous prime number is 111
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 12
Digital Root 3
Name
twenty thousand ninety-one
Scientific notation
2.0091 × 10^4
Engineering notation
2.0091 × 10^3
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.
5 , 5 , 48 , 12 , 928 , 121 , 9649 , 4324 , 38308 , 95946 , 489467 , 364124 , 5085943 , 7156530 , 26362173 , 18564164 , 956617540 , 311013667 , 4590630770 , 6391851006
n×2
40182
n×3
60273
n×4
80364
n×5
100455
n÷2
10045.5
n÷3
6697
n÷3
5022.75
n÷5
4018.2
n2
403648281
n3
8109697613571
n4
162931934754254961
n5
3.2734655011477E+21
2 √n
141.74272468102
3 √n
27.185282551344
4 √n
11.905575361192
5 √n
7.254380160582
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
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
md5
8ac462c3beb1a7bb86506bb0218c55af
sha1
10dbd6fad7eacbda634bb022bea6b04ec43332e0
sha256
033e5efa2816c5edb6b0b8673a7ba12a5a1a40236e3665917d29e45f948f367c
sha512
f1850e3eea5510dfcf8779a28f6bcfce5e8cb52683cacdd1f1725dd9474e91a434252b346db2ef6744867ab4a85392c9267cd12c68ad12b3054e1981bb8232c6
ripemd-160
acfa17ea3d6331f49b8cfbf4d9f0a808b9b35d14
Diameter
40182
Circumference
126235.47600655
Area
1268098474.2237
Volume
33969821927506
Surface area
5072393896.895
Circumference
126235.47600655
Perimeter
80364
Area
403648281
Diagonal
28412.964681638
Surface area
2421889686
Volume
8109697613571
Space diagonal
34798.632774866
Perimeter
60273
Area
174784832.76996
Altitude
17399.316387433
Surface area
174784832.76996
Volume
955737029321.4
Height
9470.9882272126