20218979 is an odd 8-digits composite number following 20218978
and preceding 20218980 . In scientific notation, it is written as 2.0218979 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 18380780 positive integers (up to 20218979) that are relatively prime to 20218979.
20218979 has 6 divisors, whose sum is 22224300
The reverse of 20218979 is 97981202
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million two hundred eighteen thousand nine hundred seventy-nine
Scientific notation
2.0218979 × 10^7
Engineering notation
2.0218979 × 10^6
Prime Factorization
11 × 11 × 167099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1838089
Product of the distinct prime numbers
The prime factorization of 20218979 is 11 × 11 × 167099.
Since it has a total of 3 prime factors.
1 , 1 , 19 , 27 , 380 , 816 , 3412 , 1171 , 2597 , 14222 , 231409 , 871937 , 3179140 , 1767660 , 66909739 , 44942398 , 814227001 , 182726805 , 2339365416 , 6225445828
n×2
40437958
n×3
60656937
n×4
80875916
n×5
101094895
n÷2
10109489.5
n÷3
6739659.6666667
n÷3
5054744.75
n÷5
4043795.8
n2
408807111802441
n3
8.2656624085842E+21
n4
1.6712325466025E+29
n5
3.3790615763873E+36
2 √n
4496.5519011794
3 √n
272.42883532903
4 √n
67.056333788684
5 √n
28.9169073985
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20218978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20218979 can be divided by 6 positive divisors.
The sum of these divisors (counting 20218979) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101001000010001100011
3
Ternary
1102001020020002
4
Quaternary
1031020101203
5
Quinary
20134001404
6
Senary
2001210215
8
Octal
115102143
10
Decimal
20218979
12
Duodecimal
693096b
16
Hexadecimal
1348463
20
Vigesimal
66778j
36
Base36
c1d2b
md5
fedc19592970a3ddd7e8b52ba284eb3a
sha1
1d5f252bc4243dedde4883a8f0dc124543df985f
sha256
d3ccaf9daaa53c1c3396cf9b46d4fca40a1a5eaf8ba7b2e10d09baac05a8b6ff
sha512
95fa5467fbbbe747c8e0bf26d10e1d883b004e66a31d92dc0c8ceac651c9ccbdfafff41c355719cf0a726487587b236a8767c8c0d199b5cdbfc79f51590ac145
ripemd-160
df4ea4cc05be87a4442b18490a1b34560b452fad
Diameter
40437958
Circumference
127039591.77897
Area
1.2843054191738E+15
Volume
3.4623125733149E+22
Surface area
5.1372216766952E+15
Circumference
127039591.77897
Perimeter
80875916
Area
408807111802441
Diagonal
28593954.319137
Surface area
2452842670814646
Volume
8.2656624085842E+21
Space diagonal
35020298.905168
Perimeter
60656937
Area
1.7701867203433E+14
Altitude
17510149.452584
Surface area
1.7701867203433E+14
Volume
9.7411765668477E+20
Height
9531318.1063789