20731691 is an odd 8-digits composite number following 20731690
and preceding 20731692 . In scientific notation, it is written as 2.0731691 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 20036160 positive integers (up to 20731691) that are relatively prime to 20731691.
20731691 has 8 divisors, whose sum is 21436800
The reverse of 20731691 is 19613702
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred thirty-one thousand six hundred ninety-one
Scientific notation
2.0731691 × 10^7
Engineering notation
2.0731691 × 10^6
Prime Factorization
109 × 41 × 4639
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731691
Product of the distinct prime numbers
The prime factorization of 20731691 is 109 × 41 × 4639.
Since it has a total of 3 prime factors.
3 , 5 , 62 , 24 , 413 , 616 , 386 , 3263 , 75061 , 88037 , 72167 , 818016 , 1831718 , 9202164 , 30332833 , 90024847 , 793773564 , 799352141 , 905508984 , 5172149776
n×2
41463382
n×3
62195073
n×4
82926764
n×5
103658455
n÷2
10365845.5
n÷3
6910563.6666667
n÷3
5182922.75
n÷5
4146338.2
n2
429803011719481
n3
8.9105432298377E+21
n4
1.8473062888314E+29
n5
3.8297783162409E+36
2 √n
4553.2066722256
3 √n
274.71238690347
4 √n
67.47745306564
5 √n
29.062096830053
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
-20731690
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 20731691 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731691) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011100101011
3
Ternary
1110000021112102
4
Quaternary
1033011130223
5
Quinary
20301403231
6
Senary
2020204015
8
Octal
117053453
10
Decimal
20731691
12
Duodecimal
6b3960b
16
Hexadecimal
13c572b
20
Vigesimal
69b94b
36
Base36
cccob
md5
8dde36f62b5c6c009273f1683197a710
sha1
fc5e58f117d26c51eb3a2704f4ff312deb91988e
sha256
4b5f2ec940c7c799e86939e68cc0d408bb0a5f820dbc8266a23a95db4f890248
sha512
c03e5346272da7955195ebdad84201ec682695ad7df2fd849bb5d912b61e8562b42050974c775e3b9948ad9304d9a613b14330e7dcaf6aebbf43811d953c910b
ripemd-160
9832e962c38b8782b84bf84d2420f83a1b3dcc2e
Diameter
41463382
Circumference
130261056.28419
Area
1.3502659841087E+15
Volume
3.732439620047E+22
Surface area
5.4010639364348E+15
Circumference
130261056.28419
Perimeter
82926764
Area
429803011719481
Diagonal
29319038.583128
Surface area
2578818070316886
Volume
8.9105432298377E+21
Space diagonal
35908342.138818
Perimeter
62195073
Area
1.8611016338607E+14
Altitude
17954171.069409
Surface area
1.8611016338607E+14
Volume
1.0501175903123E+21
Height
9773012.8610427