18180 is an even 5-digits composite number following 18179
and preceding 18181 . In scientific notation, it is written as 1.8180 × 10^4.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 4800 positive integers (up to 18180) that are relatively prime to 18180.
18180 has 12 divisors, whose sum is 32844
The reverse of 18180 is 08181
Previous prime number is 45
Is Prime? no
Number parity even
Number length 5
Sum of Digits 18
Digital Root 9
Name
eighteen thousand one hundred eighty
Scientific notation
1.8180 × 10^4
Engineering notation
1.8180 × 10^3
Prime Factorization
2 × 2 × 45 × 101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9090
Product of the distinct prime numbers
The prime factorization of 18180 is 2 × 2 × 45 × 101.
Since it has a total of 4 prime factors.
6 , 1 , 72 , 19 , 517 , 71 , 9428 , 3321 , 79050 , 15237 , 985283 , 70470 , 6533301 , 4985912 , 2575932 , 32907065 , 291062542 , 573365050 , 6620073105 , 1838752125
n×2
36360
n×3
54540
n×4
72720
n×5
90900
n÷2
9090
n÷3
6060
n÷3
4545
n÷5
3636
n2
330512400
n3
6008715432000
n4
109238446553760000
n5
1.9859549583474E+21
2 √n
134.83323032547
3 √n
26.294482402109
4 √n
11.611771196741
5 √n
7.1108051089687
1 , 2 , 4 , 45 , 90 , 101 , 180 , 202 , 404 , 4545 , 9090 , 18180
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
-18179
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 18180 can be divided by 12 positive divisors.
The sum of these divisors (counting 18180) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100011100000100
3
Ternary
220221100
4
Quaternary
10130010
5
Quinary
1040210
6
Senary
220100
8
Octal
43404
10
Decimal
18180
12
Duodecimal
a630
16
Hexadecimal
4704
20
Vigesimal
2590
36
Base36
e10
md5
f3d205b3f8c2bb28c46e204c6f1b499d
sha1
be1be8d64c645e6cfcd746a9cb91149228ef1c03
sha256
2b2e97c370ed0f5632bcde2bc4fbc579f5026d7458fd6fd85b1d6e0d6f85ddf4
sha512
b3660f4926abc84979439a74a9e8910878cc21965f87f02a16131dbdeb993a2f8ec4af2e8b3643d49853ee8c887c5deb2018fa7266fe0b75715841ae4c7f95db
ripemd-160
97650c9500b5c7015acc03a51505ab6d69dcec6d
Diameter
36360
Circumference
114228.30888452
Area
1038335327.7603
Volume
25169248344910
Surface area
4153341311.0413
Circumference
114228.30888452
Perimeter
72720
Area
330512400
Diagonal
25710.402563943
Surface area
1983074400
Volume
6008715432000
Space diagonal
31488.683681602
Perimeter
54540
Area
143116067.33288
Altitude
15744.341840801
Surface area
143116067.33288
Volume
708133904697.91
Height
8570.134187981