20690745 is an odd 8-digits composite number following 20690744
and preceding 20690746 . In scientific notation, it is written as 2.0690745 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 11035056 positive integers (up to 20690745) that are relatively prime to 20690745.
20690745 has 4 divisors, whose sum is 22070144
The reverse of 20690745 is 54709602
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred ninety thousand seven hundred forty-five
Scientific notation
2.0690745 × 10^7
Engineering notation
2.0690745 × 10^6
Prime Factorization
15 × 1379383
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20690745
Product of the distinct prime numbers
The prime factorization of 20690745 is 15 × 1379383.
Since it has a total of 2 prime factors.
9 , 7 , 65 , 46 , 830 , 28 , 7430 , 7585 , 38374 , 62300 , 16518 , 105742 , 6055494 , 5930796 , 63046428 , 96864765 , 970085348 , 505851105 , 1295296321 , 2160378806
n×2
41381490
n×3
62072235
n×4
82762980
n×5
103453725
n÷2
10345372.5
n÷3
6896915
n÷3
5172686.25
n÷5
4138149
n2
428106928655025
n3
8.8578512935343E+21
n4
1.8327554236244E+29
n5
3.7921075117579E+36
2 √n
4548.7080583392
3 √n
274.53141136423
4 √n
67.444110627535
5 √n
29.050607966604
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
-20690744
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 20690745 can be divided by 4 positive divisors.
The sum of these divisors (counting 20690745) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111011011100111001
3
Ternary
1102221012100220
4
Quaternary
1032323130321
5
Quinary
20244100440
6
Senary
2015250253
8
Octal
116733471
10
Decimal
20690745
12
Duodecimal
6b19989
16
Hexadecimal
13bb739
20
Vigesimal
6966h5
36
Base36
cbh2x
md5
0474553be6b7980c0eef794003824d28
sha1
80c6cc951904ea2917fe53ee191c09220f15a1f4
sha256
95743ddb0575fc62a95f9b55ba6574dab974863388056da1e3dd1c4021119f75
sha512
7db3e2074895a2cc253d0779d6e95d58a8d7908123e5f6d4bf182b24b468c8cf8576e789b4cf16a4daefef8090b2d9a24677e92755fa105f4bb27d1ce007ddda
ripemd-160
b4c8c9917d3b3d375cbeb3ffb77662e9881a4f6e
Diameter
41381490
Circumference
130003784.9786
Area
1.3449375820135E+15
Volume
3.7103680733811E+22
Surface area
5.3797503280541E+15
Circumference
130003784.9786
Perimeter
82762980
Area
428106928655025
Diagonal
29261132.194603
Surface area
2568641571930150
Volume
8.8578512935343E+21
Space diagonal
35837421.586452
Perimeter
62072235
Area
1.8537573787569E+14
Altitude
17918710.793226
Surface area
1.8537573787569E+14
Volume
1.0439077860667E+21
Height
9753710.7315344