218085909 is an odd 9-digits composite number following 218085908
and preceding 218085910 . In scientific notation, it is written as 2.18085909 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 145390604 positive integers (up to 218085909) that are relatively prime to 218085909.
218085909 has 4 divisors, whose sum is 290781216
The reverse of 218085909 is 909580812
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
two hundred eighteen million eighty-five thousand nine hundred nine
Scientific notation
2.18085909 × 10^8
Engineering notation
2.18085909 × 10^6
Prime Factorization
3 × 72695303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
218085909
Product of the distinct prime numbers
The prime factorization of 218085909 is 3 × 72695303.
Since it has a total of 2 prime factors.
4 , 9 , 20 , 58 , 524 , 997 , 3570 , 905 , 54455 , 89712 , 334065 , 933264 , 7549529 , 8202120 , 46491901 , 11522685 , 131257769 , 758361864 , 8732002206 , 9628516683
n×2
436171818
n×3
654257727
n×4
872343636
n×5
1090429545
n÷2
109042954.5
n÷3
72695303
n÷3
54521477.25
n÷5
43617181.8
n2
47561463704356281
n3
1.0372485045335E+25
n4
2.2620928297008E+33
n5
4.9333057100768E+41
2 √n
14767.732019508
3 √n
601.92521320528
4 √n
121.52255765704
5 √n
46.52919310071
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-218085908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 218085909 can be divided by 4 positive divisors.
The sum of these divisors (counting 218085909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100111111111011101000010101
3
Ternary
120012100220121220
4
Quaternary
30333323220111
5
Quinary
421312222114
6
Senary
33350200553
8
Octal
1477735025
10
Decimal
218085909
12
Duodecimal
61053159
16
Hexadecimal
cffba15
20
Vigesimal
3830ef9
36
Base36
3luc5x
md5
6b939629e47bef5ce38ec042e0aaae56
sha1
ec0feed53e3c8cf56c88e1deaec021e228fb311b
sha256
e1891e6e94d7c75456e85ff72641671b4fe0972a1b68c50d2578cfec686c50bc
sha512
f4fb526b1d4b3a9c5894c3a6cdd560f6bd6428953cd15790800ed927ec1ab5d5928adf3222b1236a49d883dcb85bfd9a424af30eabdbfb93d06c6ad828e8a078
ripemd-160
dbfef7fe2154e4c7902b2963e466dd04abf9b251
Diameter
436171818
Circumference
1370274179.1317
Area
1.4941874496758E+17
Volume
4.3448163757193E+25
Surface area
5.9767497987033E+17
Circumference
1370274179.1317
Perimeter
872343636
Area
47561463704356281
Diagonal
308420050.27026
Surface area
285368782226137686
Volume
1.0372485045335E+25
Space diagonal
377735874.80284
Perimeter
654257727
Area
2.0594717904572E+16
Altitude
188867937.40142
Surface area
2.0594717904572E+16
Volume
1.2224090855521E+24
Height
102806683.42342