21636 is an even 5-digits composite number following 21635
and preceding 21637 . In scientific notation, it is written as 2.1636 × 10^4.
The sum of its digits is 18. It has a total of 5 prime factors and 18 positive divisors.
There are 7200 positive integers (up to 21636) that are relatively prime to 21636.
21636 has 18 divisors, whose sum is 54782
The reverse of 21636 is 63612
Previous prime number is 3
Is Prime? no
Number parity even
Number length 5
Sum of Digits 18
Digital Root 9
Name
twenty-one thousand six hundred thirty-six
Scientific notation
2.1636 × 10^4
Engineering notation
2.1636 × 10^3
Prime Factorization
2 × 2 × 3 × 3 × 601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3606
Product of the distinct prime numbers
The prime factorization of 21636 is 2 × 2 × 3 × 3 × 601.
Since it has a total of 5 prime factors.
8 , 5 , 6 , 48 , 146 , 882 , 8706 , 9737 , 13886 , 81087 , 223919 , 315579 , 516750 , 8160039 , 54558595 , 96205996 , 817271019 , 256703916 , 5542559101 , 3355873955
n×2
43272
n×3
64908
n×4
86544
n×5
108180
n÷2
10818
n÷3
7212
n÷3
5409
n÷5
4327.2
n2
468116496
n3
10128168507456
n4
219133053827318016
n5
4.7411627526079E+21
2 √n
147.09180806558
3 √n
27.86499637687
4 √n
12.128141162832
5 √n
7.3626710006172
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 601 , 1202 , 1803 , 2404 , 3606 , 5409 , 7212 , 10818 , 21636
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21635
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21636 can be divided by 18 positive divisors.
The sum of these divisors (counting 21636) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
101010010000100
3
Ternary
1002200100
4
Quaternary
11102010
5
Quinary
1143021
6
Senary
244100
8
Octal
52204
10
Decimal
21636
12
Duodecimal
10630
16
Hexadecimal
5484
20
Vigesimal
2e1g
36
Base36
gp0
md5
4b12d1170b1c520116d2b7987dd47140
sha1
0870d4ab819235d0ad542d8b05ea82531cf42c8f
sha256
7529596f2fede37f29137669f809bcc278404462a6fbb41b54c191e5f9aabf36
sha512
c71ee50c35c37cf6e0d624a221199953fb3245179e3690a0ff5af87bf630cf1b04f4a910b80fadb5fa6a22d9904aca85e2f0c9f0da597914a13353d637d581dc
ripemd-160
833313afb98d8d04aec484fdb7b8d9757cea5571
Diameter
43272
Circumference
135942.99730614
Area
1470631344.8578
Volume
42424773036458
Surface area
5882525379.4312
Circumference
135942.99730614
Perimeter
86544
Area
468116496
Diagonal
30597.924635504
Surface area
2808698976
Volume
10128168507456
Space diagonal
37474.65127256
Perimeter
64908
Area
202700388.73328
Altitude
18737.32563628
Surface area
202700388.73328
Volume
1193616105437
Height
10199.308211835