18102009 is an odd 8-digits composite number following 18102008
and preceding 18102010 . In scientific notation, it is written as 1.8102009 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12036816 positive integers (up to 18102009) that are relatively prime to 18102009.
18102009 has 8 divisors, whose sum is 24198400
The reverse of 18102009 is 90020181
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighteen million one hundred two thousand nine
Scientific notation
1.8102009 × 10^7
Engineering notation
1.8102009 × 10^6
Prime Factorization
3 × 397 × 15199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18102009
Product of the distinct prime numbers
The prime factorization of 18102009 is 3 × 397 × 15199.
Since it has a total of 3 prime factors.
3 , 10 , 2 , 22 , 968 , 124 , 7608 , 3686 , 5033 , 41604 , 755845 , 194694 , 260379 , 6712439 , 65508954 , 82232147 , 897082210 , 278272930 , 5605789645 , 4116593523
n×2
36204018
n×3
54306027
n×4
72408036
n×5
90510045
n÷2
9051004.5
n÷3
6034003
n÷3
4525502.25
n÷5
3620401.8
n2
327682729836081
n3
5.9317157246373E+21
n4
1.0737597143283E+29
n5
1.9437208012608E+36
2 √n
4254.6455786587
3 √n
262.56827974366
4 √n
65.22764428261
5 √n
28.28429481043
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18102008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18102009 can be divided by 8 positive divisors.
The sum of these divisors (counting 18102009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101000011011011111001
3
Ternary
1021001200021210
4
Quaternary
1011003123321
5
Quinary
14113231014
6
Senary
1443553333
8
Octal
105033371
10
Decimal
18102009
12
Duodecimal
608b849
16
Hexadecimal
11436f9
20
Vigesimal
5d2f09
36
Base36
arzll
md5
f572fba3e8ced511c8189b427e983c43
sha1
4dd82385fe8e366bc8c39ccb18b6e486e0a27255
sha256
76e92d21777df0dd5040c187a6ea8af63f032528e66fe85a7d3dfd3924108456
sha512
f3eec1565af0db7d0542cf87292a678330018f53f34023c34d708c72b886c6b8c7b4392e2950644a101d793ad6e24b107e7aba4b49ad167f9eb6d4a7f451f7be
ripemd-160
eec531fb3615252df51a60f732a00adfcad87fe4
Diameter
36204018
Circumference
113738276.97923
Area
1.0294456567613E+15
Volume
2.4846712724938E+22
Surface area
4.1177826270451E+15
Circumference
113738276.97923
Perimeter
72408036
Area
327682729836081
Diagonal
25600106.634
Surface area
1966096379016486
Volume
5.9317157246373E+21
Space diagonal
31353599.307069
Perimeter
54306027
Area
1.4189078420974E+14
Altitude
15676799.653535
Surface area
1.4189078420974E+14
Volume
6.9905940216032E+20
Height
8533368.8779999