21084 is an even 5-digits composite number following 21083
and preceding 21085 . In scientific notation, it is written as 2.1084 × 10^4.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 6000 positive integers (up to 21084) that are relatively prime to 21084.
21084 has 12 divisors, whose sum is 38808
The reverse of 21084 is 48012
Previous prime number is 21
Is Prime? no
Number parity even
Number length 5
Sum of Digits 15
Digital Root 6
Name
twenty-one thousand eighty-four
Scientific notation
2.1084 × 10^4
Engineering notation
2.1084 × 10^3
Prime Factorization
2 × 2 × 21 × 251
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10542
Product of the distinct prime numbers
The prime factorization of 21084 is 2 × 2 × 21 × 251.
Since it has a total of 4 prime factors.
8 , 7 , 1 , 94 , 218 , 533 , 6686 , 8455 , 50602 , 68993 , 13110 , 481630 , 7409631 , 7667005 , 45370083 , 65131372 , 546850174 , 862510137 , 5591265911 , 5752009898
n×2
42168
n×3
63252
n×4
84336
n×5
105420
n÷2
10542
n÷3
7028
n÷3
5271
n÷5
4216.8
n2
444535056
n3
9372577120704
n4
197611416012923136
n5
4.1664390952165E+21
2 √n
145.20330574749
3 √n
27.62597848066
4 √n
12.05003343346
5 √n
7.3247128120981
1 , 2 , 4 , 21 , 42 , 84 , 251 , 502 , 1004 , 5271 , 10542 , 21084
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21083
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084 can be divided by 12 positive divisors.
The sum of these divisors (counting 21084) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101001001011100
3
Ternary
1001220220
4
Quaternary
11021130
5
Quinary
1133314
6
Senary
241340
8
Octal
51134
10
Decimal
21084
12
Duodecimal
10250
16
Hexadecimal
525c
20
Vigesimal
2ce4
36
Base36
g9o
md5
37e9b839eeb8b2d3c484e37c548dccae
sha1
850f9209ee53be07ce3a1c91546480c89b4bb456
sha256
bbca917ab2165204a5eea277f767e595dc31cbe2b591fe532d0d1c39dac5bb3d
sha512
6826b100ffc20b1a93606aa1ae43b7a9631b7c62fd5d8676ed799fc4fda99b1216e73737172deef421b9c6ffa9dc3e062afa8dd820b6db44df156ef5a41a05f0
ripemd-160
0d2f9893ca89e0ffaf59a74524dee64f0a20f47d
Diameter
42168
Circumference
132474.67901657
Area
1396548066.1927
Volume
39259759236810
Surface area
5586192264.7709
Circumference
132474.67901657
Perimeter
84336
Area
444535056
Diagonal
29817.278749074
Surface area
2667210336
Volume
9372577120704
Space diagonal
36518.559226782
Perimeter
63252
Area
192489325.68437
Altitude
18259.279613391
Surface area
192489325.68437
Volume
1104568806540.6
Height
9939.0929163581