20789871 is an odd 8-digits composite number following 20789870
and preceding 20789872 . In scientific notation, it is written as 2.0789871 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 13412760 positive integers (up to 20789871) that are relatively prime to 20789871.
20789871 has 8 divisors, whose sum is 28614144
The reverse of 20789871 is 17898702
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred eighty-nine thousand eight hundred seventy-one
Scientific notation
2.0789871 × 10^7
Engineering notation
2.0789871 × 10^6
Prime Factorization
3 × 31 × 223547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20789871
Product of the distinct prime numbers
The prime factorization of 20789871 is 3 × 31 × 223547.
Since it has a total of 3 prime factors.
4 , 1 , 19 , 94 , 675 , 153 , 5807 , 4452 , 80206 , 88910 , 26434 , 956699 , 1856904 , 7255795 , 70776002 , 74158300 , 817461235 , 912556348 , 7413700259 , 2821585281
n×2
41579742
n×3
62369613
n×4
83159484
n×5
103949355
n÷2
10394935.5
n÷3
6929957
n÷3
5197467.75
n÷5
4157974.2
n2
432218736196641
n3
8.9857717693112E+21
n4
1.8681303591942E+29
n5
3.8838189178831E+36
2 √n
4559.5911000878
3 √n
274.96912490834
4 √n
67.524744354109
5 √n
29.078390126805
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
-20789870
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 20789871 can be divided by 8 positive divisors.
The sum of these divisors (counting 20789871) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010011101001101111
3
Ternary
1110010020100020
4
Quaternary
1033103221233
5
Quinary
20310233441
6
Senary
2021333223
8
Octal
117235157
10
Decimal
20789871
12
Duodecimal
6b67213
16
Hexadecimal
13d3a6f
20
Vigesimal
69iedb
36
Base36
cdlkf
md5
20879d92bde3e45c73be04e318357b42
sha1
873c6b1a624909eab7c319f40bf5130d9e68eec4
sha256
5307d72bcaedd27f505ad21e4e713df1d20ba683a48c601e7197d8eb4390ffdb
sha512
ef2b7956b8655e5129f47140c43b374c586007e677ef4d3379260c651f8510a9a0be4600b51723762263b0538f5118fc8eda089911c42f2a6c751a5b60f73766
ripemd-160
c58a79d1e59afac2595ffc0df0ab4d867b0c813d
Diameter
41579742
Circumference
130626612.00536
Area
1.3578552063792E+15
Volume
3.7639512769737E+22
Surface area
5.4314208255169E+15
Circumference
130626612.00536
Perimeter
83159484
Area
432218736196641
Diagonal
29401317.528187
Surface area
2593312417179846
Volume
8.9857717693112E+21
Space diagonal
36009112.854803
Perimeter
62369613
Area
1.8715620276895E+14
Altitude
18004556.427401
Surface area
1.8715620276895E+14
Volume
1.0589833587124E+21
Height
9800439.1760624