20797891 is an odd 8-digits composite number following 20797890
and preceding 20797892 . In scientific notation, it is written as 2.0797891 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors.
There are 20540508 positive integers (up to 20797891) that are relatively prime to 20797891.
20797891 has 6 divisors, whose sum is 21058460
The reverse of 20797891 is 19879702
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million seven hundred ninety-seven thousand eight hundred ninety-one
Scientific notation
2.0797891 × 10^7
Engineering notation
2.0797891 × 10^6
Prime Factorization
83 × 83 × 3019
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
250577
Product of the distinct prime numbers
The prime factorization of 20797891 is 83 × 83 × 3019.
Since it has a total of 3 prime factors.
6 , 2 , 82 , 49 , 266 , 793 , 5127 , 4684 , 94063 , 38930 , 328369 , 289171 , 7661022 , 5742163 , 21897278 , 61825266 , 480802616 , 999110087 , 4102329940 , 5281346789
n×2
41595782
n×3
62393673
n×4
83191564
n×5
103989455
n÷2
10398945.5
n÷3
6932630.3333333
n÷3
5199472.75
n÷5
4159578.2
n2
432552270047881
n3
8.9961749642584E+21
n4
1.8710146632357E+29
n5
3.8913159025379E+36
2 √n
4560.470480115
3 √n
275.00447816399
4 √n
67.531255579287
5 √n
29.080633264453
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20797890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20797891 can be divided by 6 positive divisors.
The sum of these divisors (counting 20797891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111010101100111000011
3
Ternary
1110010122100021
4
Quaternary
1033111213003
5
Quinary
20311013031
6
Senary
2021434311
8
Octal
117254703
10
Decimal
20797891
12
Duodecimal
6b6b997
16
Hexadecimal
13d59c3
20
Vigesimal
69jeeb
36
Base36
cdrr7
md5
bc817a5743b45f13d2735623d7a6dab8
sha1
87a85e1b5f9fae9f4ead90d0e8373e4f9e199fa9
sha256
a5dd0a0517cfad8eb802a51d82c6a77a5e4c963f411a36bd470eb1c6b8705c92
sha512
994ccddb27c934c1ec9cee19d382969401dca09d8d684a62aa1c90fbc5349bb8ab5b8abe239ce13f4448a92cbef794ba003b2f0ad3853277b5a09b64cb8e2df1
ripemd-160
03c522312bec35d338474e50ed6554edfff197bc
Diameter
41595782
Circumference
130677003.15152
Area
1.358903033876E+15
Volume
3.768308957083E+22
Surface area
5.435612135504E+15
Circumference
130677003.15152
Perimeter
83191564
Area
432552270047881
Diagonal
29412659.520957
Surface area
2595313620287286
Volume
8.9961749642584E+21
Space diagonal
36023003.902279
Perimeter
62393673
Area
1.8730062716305E+14
Altitude
18011501.95114
Surface area
1.8730062716305E+14
Volume
1.0602093869946E+21
Height
9804219.8403191