18982 is an even 5-digits composite number following 18981
and preceding 18983 . In scientific notation, it is written as 1.8982 × 10^4.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 9490 positive integers (up to 18982) that are relatively prime to 18982.
18982 has 4 divisors, whose sum is 28476
The reverse of 18982 is 28981
Previous prime number is 2
Is Prime? no
Number parity even
Number length 5
Sum of Digits 28
Digital Root 1
Name
eighteen thousand nine hundred eighty-two
Scientific notation
1.8982 × 10^4
Engineering notation
1.8982 × 10^3
Prime Factorization
2 × 9491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18982
Product of the distinct prime numbers
The prime factorization of 18982 is 2 × 9491.
Since it has a total of 2 prime factors.
8 , 6 , 65 , 44 , 714 , 970 , 6997 , 3629 , 11936 , 49960 , 82573 , 655658 , 7608344 , 5299312 , 63867709 , 62485541 , 542785733 , 688050580 , 5799258497 , 3600370720
n×2
37964
n×3
56946
n×4
75928
n×5
94910
n÷2
9491
n÷3
6327.3333333333
n÷3
4745.5
n÷5
3796.4
n2
360316324
n3
6839524462168
n4
129827853340872976
n5
2.4643923121165E+21
2 √n
137.77517918696
3 √n
26.675587293286
4 √n
11.73776721472
5 √n
7.1724642757651
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
-18981
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 18982 can be divided by 4 positive divisors.
The sum of these divisors (counting 18982) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101000100110
3
Ternary
222001001
4
Quaternary
10220212
5
Quinary
1101412
6
Senary
223514
8
Octal
45046
10
Decimal
18982
12
Duodecimal
ab9a
16
Hexadecimal
4a26
20
Vigesimal
2792
36
Base36
ena
md5
b1a6da1fe555b20268bf9ce70ed980e7
sha1
122335e27aa701a6b3ede710a15d507d0c34a0f3
sha256
3a7deadb6be0019a047125695c69be3b267b9b6fdf94e09af567f4279ec9939a
sha512
439f95e7db0780ea27633b00432a6e25dd3f5737b675582560b35a94138d9f7b08b23710f544f8e4c4a5d687aa835362b7b340bae6ac45ab72b07af09d04a2f0
ripemd-160
41983cc2d570d44d536d83c7321ebff61215fcfc
Diameter
37964
Circumference
119267.42350088
Area
1131967116.4469
Volume
28649333072526
Surface area
4527868465.7875
Circumference
119267.42350088
Perimeter
75928
Area
360316324
Diagonal
26844.601840966
Surface area
2161897944
Volume
6839524462168
Space diagonal
32877.788429272
Perimeter
56946
Area
156021544.99111
Altitude
16438.894214636
Surface area
156021544.99111
Volume
806045687881.71
Height
8948.2006136554