18872009 is an odd 8-digits composite number following 18872008
and preceding 18872010 . In scientific notation, it is written as 1.8872009 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 17329536 positive integers (up to 18872009) that are relatively prime to 18872009.
18872009 has 8 divisors, whose sum is 20429640
The reverse of 18872009 is 90027881
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighteen million eight hundred seventy-two thousand nine
Scientific notation
1.8872009 × 10^7
Engineering notation
1.8872009 × 10^6
Prime Factorization
13 × 197 × 7369
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18872009
Product of the distinct prime numbers
The prime factorization of 18872009 is 13 × 197 × 7369.
Since it has a total of 3 prime factors.
4 , 9 , 39 , 37 , 876 , 971 , 4553 , 3004 , 30867 , 40465 , 307724 , 673432 , 3988921 , 8167089 , 62371753 , 35908294 , 564041384 , 884487628 , 4466037772 , 1729201317
n×2
37744018
n×3
56616027
n×4
75488036
n×5
94360045
n÷2
9436004.5
n÷3
6290669.6666667
n÷3
4718002.25
n÷5
3774401.8
n2
356152723696081
n3
6.721317406967E+21
n4
1.2684476259614E+29
n5
2.3938155013172E+36
2 √n
4344.1925601888
3 √n
266.23963649994
4 √n
65.91048899977
5 √n
28.520926340286
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
-18872008
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 18872009 can be divided by 8 positive divisors.
The sum of these divisors (counting 18872009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111111111011011001001
3
Ternary
1022111210112022
4
Quaternary
1013333123021
5
Quinary
14312401014
6
Senary
1512254225
8
Octal
107773311
10
Decimal
18872009
12
Duodecimal
63a1375
16
Hexadecimal
11ff6c9
20
Vigesimal
5hj009
36
Base36
b8hqh
md5
ffcfb15c11c998ea730434944198f9f5
sha1
64b3b82f3e070f6206b8bfac207a100d86ab93b3
sha256
2c9c9761c856292146b4d2921e372648fbb15911f8c2c7deeb8f0b08c85c64e5
sha512
5cbe72af2091fb910ebcc0295ef823874a1e1894c433c88d82c8992fa66e1993726fc8239af9b253105a78c02272a967743e95065794ec7248f846f4b3bcac11
ripemd-160
0d9fd50882284646ee2712095f6318cf2e4033ab
Diameter
37744018
Circumference
118576329.66576
Area
1.1188867803196E+15
Volume
2.8154188517563E+22
Surface area
4.4755471212784E+15
Circumference
118576329.66576
Perimeter
75488036
Area
356152723696081
Diagonal
26689051.077027
Surface area
2136916342176486
Volume
6.721317406967E+21
Space diagonal
32687278.428897
Perimeter
56616027
Area
1.5421865317391E+14
Altitude
16343639.214449
Surface area
1.5421865317391E+14
Volume
7.9211485282892E+20
Height
8896350.359009