20728051 is an odd 8-digits composite number following 20728050
and preceding 20728052 . In scientific notation, it is written as 2.0728051 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 20445768 positive integers (up to 20728051) that are relatively prime to 20728051.
20728051 has 8 divisors, whose sum is 21012480
The reverse of 20728051 is 15082702
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million seven hundred twenty-eight thousand fifty-one
Scientific notation
2.0728051 × 10^7
Engineering notation
2.0728051 × 10^6
Prime Factorization
127 × 227 × 719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20728051
Product of the distinct prime numbers
The prime factorization of 20728051 is 127 × 227 × 719.
Since it has a total of 3 prime factors.
10 , 10 , 3 , 44 , 365 , 834 , 7354 , 2741 , 41823 , 20595 , 900934 , 790513 , 9352880 , 1042349 , 18929613 , 29434064 , 244562763 , 279208949 , 5028732172 , 7991130620
n×2
41456102
n×3
62184153
n×4
82912204
n×5
103640255
n÷2
10364025.5
n÷3
6909350.3333333
n÷3
5182012.75
n÷5
4145610.2
n2
429652098258601
n3
8.9058506049613E+21
n4
1.8460092553802E+29
n5
3.8264173991993E+36
2 √n
4552.8069363855
3 √n
274.69630827266
4 √n
67.474491005012
5 √n
29.061076233492
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
-20728050
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 20728051 can be divided by 8 positive divisors.
The sum of these divisors (counting 20728051) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000100100011110011
3
Ternary
1110000002112121
4
Quaternary
1033010203303
5
Quinary
20301244201
6
Senary
2020135111
8
Octal
117044363
10
Decimal
20728051
12
Duodecimal
6b37497
16
Hexadecimal
13c48f3
20
Vigesimal
69b02b
36
Base36
cc9v7
md5
9947d0cb9235fe17473573da1d21e689
sha1
41136f6766f5f8ef09830db8f35b56d019200b91
sha256
f31237078b015228d054970b6cfc2b0b9c681c3838e414bdfd4c3d4d482f7a29
sha512
514622dd117f885eec064d312f0d4bfa96a59e86d03c2168cc6783c98c19f115e67dc98fc693ab24ce6947bc25162c89b6ce514d688fdd36a1b977359d460647
ripemd-160
ce93cb5148cbecb31dc742502cb5e2df27de2903
Diameter
41456102
Circumference
130238185.48967
Area
1.3497918754887E+15
Volume
3.7304739779353E+22
Surface area
5.3991675019546E+15
Circumference
130238185.48967
Perimeter
82912204
Area
429652098258601
Diagonal
29313890.845761
Surface area
2577912589551606
Volume
8.9058506049613E+21
Space diagonal
35902037.473879
Perimeter
62184153
Area
1.8604481594062E+14
Altitude
17951018.736939
Surface area
1.8604481594062E+14
Volume
1.0495645591671E+21
Height
9771296.9485871