18018020 is an even 8-digits composite number following 18018019
and preceding 18018021 . In scientific notation, it is written as 1.8018020 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors.
There are 7161696 positive integers (up to 18018020) that are relatively prime to 18018020.
18018020 has 24 divisors, whose sum is 38076864
The reverse of 18018020 is 02081081
Previous prime number is 163
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighteen million eighteen thousand twenty
Scientific notation
1.8018020 × 10^7
Engineering notation
1.8018020 × 10^6
Prime Factorization
2 × 2 × 5 × 163 × 5527
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
9009010
Product of the distinct prime numbers
The prime factorization of 18018020 is 2 × 2 × 5 × 163 × 5527.
Since it has a total of 5 prime factors.
5 , 2 , 76 , 43 , 785 , 799 , 1338 , 256 , 28530 , 47151 , 62472 , 191553 , 8710914 , 2391723 , 58073888 , 65451163 , 303795621 , 179338509 , 6168326134 , 1091547628
n×2
36036040
n×3
54054060
n×4
72072080
n×5
90090100
n÷2
9009010
n÷3
6006006.6666667
n÷3
4504505
n÷5
3603604
n2
324649044720400
n3
5.8495329807531E+21
n4
1.0539700223787E+29
n5
1.899045294262E+36
2 √n
4244.7638332421
3 √n
262.16156536399
4 √n
65.15185210907
5 √n
28.257999488394
1 , 2 , 4 , 5 , 10 , 20 , 163 , 326 , 652 , 815 , 1630 , 3260 , 5527 , 11054 , 22108 , 27635 , 55270 , 110540 , 900901 , 1801802 , 3603604 , 4504505 , 9009010 , 18018020
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18018019
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18018020 can be divided by 24 positive divisors.
The sum of these divisors (counting 18018020) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1000100101110111011100100
3
Ternary
1020220102002002
4
Quaternary
1010232323210
5
Quinary
14103034040
6
Senary
1442104432
8
Octal
104567344
10
Decimal
18018020
12
Duodecimal
604b118
16
Hexadecimal
112eee4
20
Vigesimal
5cc510
36
Base36
aq6sk
md5
e091ebb3ab437860907078803d7200fe
sha1
762464c00e05012b3db7070034844cac60faf95f
sha256
98e3bf3875234952566404251ffb370a4a24142f4c6a6d01374584cdd8446f83
sha512
a6d16b0f13798265444e0371fa68c6710c747b8136088d3a203634dfc40430aac97f8c1590b486035638bb40edba209735c48bfde30d622c050a7864c1b54cde
ripemd-160
c84c52f6d937060e67ec9fa3fda14762f6112a3d
Diameter
36036040
Circumference
113210558.52847
Area
1.0199150538886E+15
Volume
2.4502466452353E+22
Surface area
4.0796602155542E+15
Circumference
113210558.52847
Perimeter
72072080
Area
324649044720400
Diagonal
25481328.25111
Surface area
1947894268322400
Volume
5.8495329807531E+21
Space diagonal
31208126.091792
Perimeter
54054060
Area
1.4057716002111E+14
Altitude
15604063.045896
Surface area
1.4057716002111E+14
Volume
6.8937407291081E+20
Height
8493776.0837032