20797791 is an odd 8-digits composite number following 20797790
and preceding 20797792 . In scientific notation, it is written as 2.0797791 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 11884440 positive integers (up to 20797791) that are relatively prime to 20797791.
20797791 has 4 divisors, whose sum is 21788184
The reverse of 20797791 is 19779702
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred ninety-seven thousand seven hundred ninety-one
Scientific notation
2.0797791 × 10^7
Engineering notation
2.0797791 × 10^6
Prime Factorization
21 × 990371
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20797791
Product of the distinct prime numbers
The prime factorization of 20797791 is 21 × 990371.
Since it has a total of 2 prime factors.
2 , 2 , 43 , 100 , 374 , 272 , 858 , 2801 , 23475 , 20882 , 575268 , 826468 , 4185336 , 5744549 , 15294713 , 44509238 , 724451034 , 482462584 , 9688781775 , 1202923689
n×2
41595582
n×3
62393373
n×4
83191164
n×5
103988955
n÷2
10398895.5
n÷3
6932597
n÷3
5199447.75
n÷5
4159558.2
n2
432548110479681
n3
8.9960451992013E+21
n4
1.8709786787954E+29
n5
3.8912223527043E+36
2 √n
4560.4595163207
3 √n
275.00403740629
4 √n
67.531174403535
5 √n
29.080605299416
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
-20797790
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 20797791 can be divided by 4 positive divisors.
The sum of these divisors (counting 20797791) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010101100101011111
3
Ternary
1110010122012120
4
Quaternary
1033111211133
5
Quinary
20311012131
6
Senary
2021434023
8
Octal
117254537
10
Decimal
20797791
12
Duodecimal
6b6b913
16
Hexadecimal
13d595f
20
Vigesimal
69je9b
36
Base36
cdrof
md5
a37788b27f6ee869c251671111526f31
sha1
680f779ce8952c45d0b41dbb5732cd9ba4e1819c
sha256
b497d99f6ffee3202c9024f6d248c072b26b5d4b2c31fd76758cc1072445ff6c
sha512
df782100a2eb81278254c6ca76697e8070a02c76b3d95505af1c50029d03dd3b2098f766a760c3e82f3284ca93869642d4e54d49d5269cc3c88581c4b7d8555f
ripemd-160
158cb8d15888ab64ab6e19e9ff35dd4170dcc58a
Diameter
41595582
Circumference
130676374.83299
Area
1.3588899662071E+15
Volume
3.768254601223E+22
Surface area
5.4355598648284E+15
Circumference
130676374.83299
Perimeter
83191164
Area
432548110479681
Diagonal
29412518.099601
Surface area
2595288662878086
Volume
8.9960451992013E+21
Space diagonal
36022830.697199
Perimeter
62393373
Area
1.8729882601718E+14
Altitude
18011415.348599
Surface area
1.8729882601718E+14
Volume
1.060194094036E+21
Height
9804172.699867