18318 is an even 5-digits composite number following 18317
and preceding 18319 . In scientific notation, it is written as 1.8318 × 10^4.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 5880 positive integers (up to 18318) that are relatively prime to 18318.
18318 has 16 divisors, whose sum is 38016
The reverse of 18318 is 81381
Previous prime number is 43
Is Prime? no
Number parity even
Number length 5
Sum of Digits 21
Digital Root 3
Name
eighteen thousand three hundred eighteen
Scientific notation
1.8318 × 10^4
Engineering notation
1.8318 × 10^3
Prime Factorization
2 × 3 × 43 × 71
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18318
Product of the distinct prime numbers
The prime factorization of 18318 is 2 × 3 × 43 × 71.
Since it has a total of 4 prime factors.
6 , 5 , 20 , 100 , 145 , 588 , 166 , 6547 , 37402 , 52789 , 835071 , 351719 , 3160809 , 1729079 , 50091982 , 72484514 , 793049645 , 863384256 , 9143879797 , 9643847950
n×2
36636
n×3
54954
n×4
73272
n×5
91590
n÷2
9159
n÷3
6106
n÷3
4579.5
n÷5
3663.6
n2
335549124
n3
6146588853432
n4
112593214617167376
n5
2.0624825053573E+21
2 √n
135.3440061473
3 √n
26.360846460078
4 √n
11.633744287515
5 √n
7.1215677613955
1 , 2 , 3 , 6 , 43 , 71 , 86 , 129 , 142 , 213 , 258 , 426 , 3053 , 6106 , 9159 , 18318
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
-18317
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 18318 can be divided by 16 positive divisors.
The sum of these divisors (counting 18318) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100011110001110
3
Ternary
221010110
4
Quaternary
10132032
5
Quinary
1041233
6
Senary
220450
8
Octal
43616
10
Decimal
18318
12
Duodecimal
a726
16
Hexadecimal
478e
20
Vigesimal
25fi
36
Base36
e4u
md5
e271b6eda6d30235aaec1743673316ce
sha1
177d37eebd1ddf8414fcfee192e7aecf4c353e06
sha256
8b173290a436b079bb642b5b71c303bc934cd48747b557e0d14c9fa66b88cc45
sha512
ae922799b7c22c83aa39dc661872c2adf3b5e5e2e2382269a1fb356c05c952ef69ad6e15e3be42b9f5f1db9cb5640a948f9afc09f2024f7395d266774a98467d
ripemd-160
72b3431931078e93f37a16db82813db2db039e38
Diameter
36636
Circumference
115095.38845692
Area
1054158662.8769
Volume
25746771182105
Surface area
4216634651.5076
Circumference
115095.38845692
Perimeter
73272
Area
335549124
Diagonal
25905.56403555
Surface area
2013294744
Volume
6146588853432
Space diagonal
31727.706693047
Perimeter
54954
Area
145297032.80081
Altitude
15863.853346523
Surface area
145297032.80081
Volume
724382443237.9
Height
8635.1880118501