20197979 is an odd 8-digits composite number following 20197978
and preceding 20197980 . In scientific notation, it is written as 2.0197979 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 19319784 positive integers (up to 20197979) that are relatively prime to 20197979.
20197979 has 4 divisors, whose sum is 21076176
The reverse of 20197979 is 97979102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million one hundred ninety-seven thousand nine hundred seventy-nine
Scientific notation
2.0197979 × 10^7
Engineering notation
2.0197979 × 10^6
Prime Factorization
23 × 878173
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20197979
Product of the distinct prime numbers
The prime factorization of 20197979 is 23 × 878173.
Since it has a total of 2 prime factors.
5 , 9 , 16 , 90 , 392 , 493 , 4077 , 4973 , 71392 , 56298 , 584382 , 622104 , 340440 , 5418830 , 24103623 , 93510773 , 74504961 , 318042180 , 8193305911 , 7040602273
n×2
40395958
n×3
60593937
n×4
80791916
n×5
100989895
n÷2
10098989.5
n÷3
6732659.6666667
n÷3
5049494.75
n÷5
4039595.8
n2
407958355684441
n3
8.2399343009889E+21
n4
1.6643001997275E+29
n5
3.3615500483792E+36
2 √n
4494.2161719259
3 √n
272.33448524091
4 √n
67.038915354635
5 √n
28.910898118827
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
-20197978
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 20197979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20197979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011001001011011
3
Ternary
1102000011102022
4
Quaternary
1031003021123
5
Quinary
20132313404
6
Senary
2000525055
8
Octal
115031133
10
Decimal
20197979
12
Duodecimal
692078b
16
Hexadecimal
134325b
20
Vigesimal
664eij
36
Base36
c0wuz
md5
81f6ec8dc0adf2f6dba2f19dd309e217
sha1
90a6f091fa25910953949309c18c5c6e7409e105
sha256
b1c56ff7dfc050e9155710e1e120cb0d457cf8f08cbab396e9a8b079611e746b
sha512
3773f80c3199f9cafcc4226bd069ee2d96ca2fcc07768afb40180a03eca6535a327163af84193ed845cb6fed416c6907dffc38f2e5981b475b8e990117e83ca9
ripemd-160
5a7eef82bd33f1745ee1d9c34eb076b77e425242
Diameter
40395958
Circumference
126907644.88752
Area
1.2816389731888E+15
Volume
3.4515356088066E+22
Surface area
5.1265558927552E+15
Circumference
126907644.88752
Perimeter
80791916
Area
407958355684441
Diagonal
28564255.834327
Surface area
2447750134106646
Volume
8.2399343009889E+21
Space diagonal
34983925.838209
Perimeter
60593937
Area
1.7665114985443E+14
Altitude
17491962.919105
Surface area
1.7665114985443E+14
Volume
9.7108557012681E+20
Height
9521418.6114423