20691243 is an odd 8-digits composite number following 20691242
and preceding 20691244 . In scientific notation, it is written as 2.0691243 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 13757040 positive integers (up to 20691243) that are relatively prime to 20691243.
20691243 has 12 divisors, whose sum is 29967808
The reverse of 20691243 is 34219602
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred ninety-one thousand two hundred forty-three
Scientific notation
2.0691243 × 10^7
Engineering notation
2.0691243 × 10^6
Prime Factorization
3 × 3 × 397 × 5791
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6897081
Product of the distinct prime numbers
The prime factorization of 20691243 is 3 × 3 × 397 × 5791.
Since it has a total of 4 prime factors.
3 , 3 , 30 , 51 , 279 , 469 , 3074 , 7556 , 65665 , 91900 , 626100 , 635003 , 6676205 , 4071423 , 89727263 , 64900615 , 430035036 , 749137608 , 2502439904 , 6051472274
n×2
41382486
n×3
62073729
n×4
82764972
n×5
103456215
n÷2
10345621.5
n÷3
6897081
n÷3
5172810.75
n÷5
4138248.6
n2
428127536885049
n3
8.85849090068E+21
n4
1.8329318783926E+29
n5
3.7925638898268E+36
2 √n
4548.7627988278
3 √n
274.53361388757
4 √n
67.444516447431
5 √n
29.050747807518
1 , 3 , 9 , 397 , 1191 , 3573 , 5791 , 17373 , 52119 , 2299027 , 6897081 , 20691243
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20691242
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20691243 can be divided by 12 positive divisors.
The sum of these divisors (counting 20691243) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111011100100101011
3
Ternary
1102221020001100
4
Quaternary
1032323210223
5
Quinary
20244104433
6
Senary
2015252443
8
Octal
116734453
10
Decimal
20691243
12
Duodecimal
6b1a123
16
Hexadecimal
13bb92b
20
Vigesimal
696823
36
Base36
cbhgr
md5
5d04c57cec0962749e484cb65512faa6
sha1
963e5c0432e7a8320c6702ff1e2a6de95d58f09c
sha256
d0fbf411e67d1baa403ce79ae54867ac265b48d38afb089aebee6fb9c3a048da
sha512
2dd02cd00ff87a8ab1dbc29b1931b411f7e9dee1cb89e0e253a3fe9da06449de57805ebe83bca757cd1e9868f1aa5ca0a04ef29364dcded1c89e16704518cabf
ripemd-160
d58252ca5b45b74190da81ca9e9029a023a59381
Diameter
41382486
Circumference
130006914.00488
Area
1.3450023246776E+15
Volume
3.7106359913958E+22
Surface area
5.3800092987103E+15
Circumference
130006914.00488
Perimeter
82764972
Area
428127536885049
Diagonal
29261836.472957
Surface area
2568765221310294
Volume
8.85849090068E+21
Space diagonal
35838284.147754
Perimeter
62073729
Area
1.8538466150106E+14
Altitude
17919142.073877
Surface area
1.8538466150106E+14
Volume
1.0439831644917E+21
Height
9753945.4909858