20691749 is an odd 8-digits composite number following 20691748
and preceding 20691750 . In scientific notation, it is written as 2.0691749 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 18524160 positive integers (up to 20691749) that are relatively prime to 20691749.
20691749 has 16 divisors, whose sum is 22967280
The reverse of 20691749 is 94719602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred ninety-one thousand seven hundred forty-nine
Scientific notation
2.0691749 × 10^7
Engineering notation
2.0691749 × 10^6
Prime Factorization
61 × 97 × 13 × 269
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20691749
Product of the distinct prime numbers
The prime factorization of 20691749 is 61 × 97 × 13 × 269.
Since it has a total of 4 prime factors.
7 , 4 , 35 , 66 , 802 , 449 , 3309 , 6396 , 36484 , 33368 , 275595 , 911229 , 946081 , 5315491 , 60855147 , 62237769 , 632990482 , 663360658 , 9589860342 , 2901801080
n×2
41383498
n×3
62075247
n×4
82766996
n×5
103458745
n÷2
10345874.5
n÷3
6897249.6666667
n÷3
5172937.25
n÷5
4138349.8
n2
428148476679001
n3
8.8591408141742E+21
n4
1.8331111808255E+29
n5
3.7930276442735E+36
2 √n
4548.818418007
3 √n
274.53585175661
4 √n
67.44492877902
5 √n
29.050889892115
1 , 13 , 61 , 97 , 269 , 793 , 1261 , 3497 , 5917 , 16409 , 26093 , 76921 , 213317 , 339209 , 1591673 , 20691749
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20691748
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20691749 can be divided by 16 positive divisors.
The sum of these divisors (counting 20691749) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111011101100100101
3
Ternary
1102221020202002
4
Quaternary
1032323230211
5
Quinary
20244113444
6
Senary
2015255045
8
Octal
116735445
10
Decimal
20691749
12
Duodecimal
6b1a485
16
Hexadecimal
13bbb25
20
Vigesimal
696979
36
Base36
cbhut
md5
2e3e3ef5c4ccbdd7a0061b9ccfc4c6f4
sha1
cbaaff457f3347c7c1719c845c326d876490abf8
sha256
8005d4f3053c6b42efbba3b9f6f995d0c10699c6dc4f207b7df1afa042275c42
sha512
5f04d15bfa4e5e84b7b27774e351961e8f05a20da1308b9633a811d78caf1b9f502aa8d3624c12b6f3d7d1801beb428befc8eacd2e04ff847a2d734afaa18e97
ripemd-160
9c8a1eae51f0844cbeb9b8d5bce681d8ae0dfb6f
Diameter
41383498
Circumference
130010093.29665
Area
1.3450681089804E+15
Volume
3.7109082265236E+22
Surface area
5.3802724359216E+15
Circumference
130010093.29665
Perimeter
82766996
Area
428148476679001
Diagonal
29262552.06502
Surface area
2568890860074006
Volume
8.8591408141742E+21
Space diagonal
35839160.565463
Perimeter
62075247
Area
1.8539372869781E+14
Altitude
17919580.282731
Surface area
1.8539372869781E+14
Volume
1.0440597575315E+21
Height
9754184.0216733