20731649 is an odd 8-digits composite number following 20731648
and preceding 20731650 . In scientific notation, it is written as 2.0731649 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20718036 positive integers (up to 20731649) that are relatively prime to 20731649.
20731649 has 4 divisors, whose sum is 20745264
The reverse of 20731649 is 94613702
Previous prime number is 1747
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred thirty-one thousand six hundred forty-nine
Scientific notation
2.0731649 × 10^7
Engineering notation
2.0731649 × 10^6
Prime Factorization
1747 × 11867
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20731649
Product of the distinct prime numbers
The prime factorization of 20731649 is 1747 × 11867.
Since it has a total of 2 prime factors.
9 , 2 , 47 , 10 , 760 , 687 , 9465 , 8797 , 6016 , 87087 , 222969 , 55042 , 5931893 , 4130911 , 11079259 , 13567073 , 619889095 , 343456092 , 9757629847 , 1411147957
n×2
41463298
n×3
62194947
n×4
82926596
n×5
103658245
n÷2
10365824.5
n÷3
6910549.6666667
n÷3
5182912.25
n÷5
4146329.8
n2
429801270259201
n3
8.9104890747679E+21
n4
1.8472913191642E+29
n5
3.829739522966E+36
2 √n
4553.2020600891
3 √n
274.71220139154
4 √n
67.477418890242
5 √n
29.062085054756
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
-20731648
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 20731649 can be divided by 4 positive divisors.
The sum of these divisors (counting 20731649) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000101011100000001
3
Ternary
1110000021110212
4
Quaternary
1033011130001
5
Quinary
20301403044
6
Senary
2020203505
8
Octal
117053401
10
Decimal
20731649
12
Duodecimal
6b39595
16
Hexadecimal
13c5701
20
Vigesimal
69b929
36
Base36
cccn5
md5
a1c17191d2ba3624d5587ef211a5b00e
sha1
8c71ba818b14ce70b2dc8578bc75d8706d016fed
sha256
e1dd47af1c718171e2adb2672e7fc709e48a194c31f95c368bb10ac09274e921
sha512
cccac3f6caec341919d4134421d6615c6bd0815d6429a524425db216266271d6be0aed6a0cdd420591ccd0eebe28a175da54f555e41c46c0c2bc391020016cfa
ripemd-160
317e8c7637e31287541e37ff90a4ce98eb3b005a
Diameter
41463298
Circumference
130260792.3904
Area
1.3502605131499E+15
Volume
3.7324169356244E+22
Surface area
5.4010420525995E+15
Circumference
130260792.3904
Perimeter
82926596
Area
429801270259201
Diagonal
29318979.186159
Surface area
2578807621555206
Volume
8.9104890747679E+21
Space diagonal
35908269.392685
Perimeter
62194947
Area
1.8610940931164E+14
Altitude
17954134.696342
Surface area
1.8610940931164E+14
Volume
1.0501112080762E+21
Height
9772993.0620529