20208979 is an odd 8-digits composite number following 20208978
and preceding 20208980 . In scientific notation, it is written as 2.0208979 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 17321976 positive integers (up to 20208979) that are relatively prime to 20208979.
20208979 has 4 divisors, whose sum is 23095984
The reverse of 20208979 is 97980202
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million two hundred eight thousand nine hundred seventy-nine
Scientific notation
2.0208979 × 10^7
Engineering notation
2.0208979 × 10^6
Prime Factorization
7 × 2886997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20208979
Product of the distinct prime numbers
The prime factorization of 20208979 is 7 × 2886997.
Since it has a total of 2 prime factors.
3 , 10 , 47 , 81 , 863 , 332 , 4766 , 7713 , 74733 , 20453 , 40773 , 666301 , 9696788 , 1054766 , 33247287 , 27340372 , 705400050 , 275865688 , 3847912267 , 9530446010
n×2
40417958
n×3
60626937
n×4
80835916
n×5
101044895
n÷2
10104489.5
n÷3
6736326.3333333
n÷3
5052244.75
n÷5
4041795.8
n2
408402832222441
n3
8.2534042599238E+21
n4
1.6679287336731E+29
n5
3.3707136752297E+36
2 √n
4495.439800509
3 √n
272.38391486747
4 √n
67.048040989346
5 √n
28.914046459791
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
-20208978
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 20208979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20208979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000101110101010011
3
Ternary
1102000201111201
4
Quaternary
1031011311103
5
Quinary
20133141404
6
Senary
2001052031
8
Octal
115056523
10
Decimal
20208979
12
Duodecimal
6927017
16
Hexadecimal
1345d53
20
Vigesimal
66628j
36
Base36
c15cj
md5
60565986ec6733e7b1383e5db474b7c9
sha1
5781ea10069e1cccce82007265eb9e5c975c4997
sha256
27d515dfa9c9f465acca791c3b6664e02adc1e0ac4d5a968fc06b679368732e8
sha512
8a8011b3820c3d3da7ed966c96411ee501443368c8c8423fd13a0385dd257d6cef66f3828a5574d993c41570666262942fed15f18eeab4abd6b557332d3b39e9
ripemd-160
0927757c8b95fcb79e6502c30fe3d055974b8a07
Diameter
40417958
Circumference
126976759.9259
Area
1.2830353374153E+15
Volume
3.4571778920111E+22
Surface area
5.1321413496611E+15
Circumference
126976759.9259
Perimeter
80835916
Area
408402832222441
Diagonal
28579812.183513
Surface area
2450416993334646
Volume
8.2534042599238E+21
Space diagonal
35002978.397092
Perimeter
60626937
Area
1.7684361384107E+14
Altitude
17501489.198546
Surface area
1.7684361384107E+14
Volume
9.7267302001101E+20
Height
9526604.061171