20984 is an even 5-digits composite number following 20983
and preceding 20985 . In scientific notation, it is written as 2.0984 × 10^4.
The sum of its digits is 23. It has a total of 5 prime factors and 16 positive divisors.
There are 10080 positive integers (up to 20984) that are relatively prime to 20984.
20984 has 16 divisors, whose sum is 40920
The reverse of 20984 is 48902
Previous prime number is 43
Is Prime? no
Number parity even
Number length 5
Sum of Digits 23
Digital Root 5
Name
twenty thousand nine hundred eighty-four
Scientific notation
2.0984 × 10^4
Engineering notation
2.0984 × 10^3
Prime Factorization
2 × 2 × 2 × 43 × 61
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5246
Product of the distinct prime numbers
The prime factorization of 20984 is 2 × 2 × 2 × 43 × 61.
Since it has a total of 5 prime factors.
7 , 7 , 52 , 82 , 674 , 623 , 569 , 8680 , 44483 , 32632 , 166302 , 840712 , 4436878 , 9128195 , 79196365 , 81834692 , 733201104 , 699438563 , 9771029090 , 4215285801
n×2
41968
n×3
62952
n×4
83936
n×5
104920
n÷2
10492
n÷3
6994.6666666667
n÷3
5246
n÷5
4196.8
n2
440328256
n3
9239848123904
n4
193888973032001536
n5
4.0685662101035E+21
2 √n
144.85855169785
3 √n
27.582233191996
4 √n
12.035719824666
5 √n
7.3177514681992
1 , 2 , 4 , 8 , 43 , 61 , 86 , 122 , 172 , 244 , 344 , 488 , 2623 , 5246 , 10492 , 20984
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20983
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20984 can be divided by 16 positive divisors.
The sum of these divisors (counting 20984) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000111111000
3
Ternary
1001210012
4
Quaternary
11013320
5
Quinary
1132414
6
Senary
241052
8
Octal
50770
10
Decimal
20984
12
Duodecimal
10188
16
Hexadecimal
51f8
20
Vigesimal
2c94
36
Base36
g6w
md5
767593ee1911f484bc931f9a10f34b66
sha1
da37e8be58c23b9aa49bccd0289f6083a728287a
sha256
62434f92b18b05f912379a936e891f9d230bc6d1e990b94c1990db075f71b710
sha512
7da3dc5001d418a43564ea5954cc6f983de45da6dd80523a3c96b3d6f0bd86b195ec440987dd9aa340686f22adc03ab6f67191da32ce08208ccb9436234df2ea
ripemd-160
774431e170d5197f98306fd1b60c1f438c1d0b0e
Diameter
41968
Circumference
131846.36048586
Area
1383332014.2176
Volume
38703785315123
Surface area
5533328056.8704
Circumference
131846.36048586
Perimeter
83936
Area
440328256
Diagonal
29675.857392837
Surface area
2641969536
Volume
9239848123904
Space diagonal
36345.354146025
Perimeter
62952
Area
190667727.85005
Altitude
18172.677073013
Surface area
190667727.85005
Volume
1088926544257.7
Height
9891.952464279