20791979 is an odd 8-digits composite number following 20791978
and preceding 20791980 . In scientific notation, it is written as 2.0791979 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 18573120 positive integers (up to 20791979) that are relatively prime to 20791979.
20791979 has 8 divisors, whose sum is 23114112
The reverse of 20791979 is 97919702
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million seven hundred ninety-one thousand nine hundred seventy-nine
Scientific notation
2.0791979 × 10^7
Engineering notation
2.0791979 × 10^6
Prime Factorization
13 × 31 × 51593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20791979
Product of the distinct prime numbers
The prime factorization of 20791979 is 13 × 31 × 51593.
Since it has a total of 3 prime factors.
2 , 3 , 14 , 48 , 166 , 22 , 6958 , 5213 , 89953 , 89596 , 611357 , 61390 , 2282936 , 2308911 , 20362822 , 38763922 , 700588935 , 655052098 , 9879681760 , 4109996325
n×2
41583958
n×3
62375937
n×4
83167916
n×5
103959895
n÷2
10395989.5
n÷3
6930659.6666667
n÷3
5197994.75
n÷5
4158395.8
n2
432306390736441
n3
8.9885053977579E+21
n4
1.8688881547157E+29
n5
3.8857883266197E+36
2 √n
4559.8222553078
3 √n
274.97841814102
4 √n
67.526455965849
5 √n
29.078979786649
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
-20791978
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 20791979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20791979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010100001010101011
3
Ternary
1110010100020022
4
Quaternary
1033110022223
5
Quinary
20310320404
6
Senary
2021351055
8
Octal
117241253
10
Decimal
20791979
12
Duodecimal
6b6848b
16
Hexadecimal
13d42ab
20
Vigesimal
69ijij
36
Base36
cdn6z
md5
687d0cf7e0e36901e865c71a9c94f96f
sha1
db33707ea835db01e6a1ebd13700263db367c27f
sha256
3f23ddd9d011997be490a2bc2b22dfaa5d937f5cd06b6b6493c3e9b44ec4679b
sha512
5464abe142140cc88d8220d8c5b184af00c3c5c740bf265822929a17258cefae5eb3d90c3d7bd13f1069c90432387c87e2af8daecb23b8aa128f2582efcef620
ripemd-160
34bdf912208c3fa08fb45ecf40c6c10db27a4bec
Diameter
41583958
Circumference
130639856.95999
Area
1.3581305812375E+15
Volume
3.7650963365798E+22
Surface area
5.4325223249501E+15
Circumference
130639856.95999
Perimeter
83167916
Area
432306390736441
Diagonal
29404298.690377
Surface area
2593838344418646
Volume
8.9885053977579E+21
Space diagonal
36012764.017905
Perimeter
62375937
Area
1.8719415829806E+14
Altitude
18006382.008953
Surface area
1.8719415829806E+14
Volume
1.0593055199144E+21
Height
9801432.8967922