20691385 is an odd 8-digits composite number following 20691384
and preceding 20691386 . In scientific notation, it is written as 2.0691385 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 13547520 positive integers (up to 20691385) that are relatively prime to 20691385.
20691385 has 8 divisors, whose sum is 21136640
The reverse of 20691385 is 58319602
Previous prime number is 559
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred ninety-one thousand three hundred eighty-five
Scientific notation
2.0691385 × 10^7
Engineering notation
2.0691385 × 10^6
Prime Factorization
55 × 559 × 673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20691385
Product of the distinct prime numbers
The prime factorization of 20691385 is 55 × 559 × 673.
Since it has a total of 3 prime factors.
3 , 10 , 66 , 1 , 888 , 678 , 55 , 5517 , 13362 , 98335 , 643654 , 209375 , 6808499 , 2787409 , 72079081 , 38378402 , 379235356 , 794467129 , 4886702482 , 7544142841
n×2
41382770
n×3
62074155
n×4
82765540
n×5
103456925
n÷2
10345692.5
n÷3
6897128.3333333
n÷3
5172846.25
n÷5
4138277
n2
428133413218225
n3
8.8586732842624E+21
n4
1.8329821951389E+29
n5
3.7926940297764E+36
2 √n
4548.7784074408
3 √n
274.53424190983
4 √n
67.444632161802
5 √n
29.050787681342
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
-20691384
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 20691385 can be divided by 8 positive divisors.
The sum of these divisors (counting 20691385) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011100110111001
3
Ternary
1102221020020121
4
Quaternary
1032323212321
5
Quinary
20244111020
6
Senary
2015253241
8
Octal
116734671
10
Decimal
20691385
12
Duodecimal
6b1a221
16
Hexadecimal
13bb9b9
20
Vigesimal
696895
36
Base36
cbhkp
md5
7287e869b800c4afbb4237916365ba0e
sha1
176edeab7b7fcd5c7c11df127f9e2e68a5954acb
sha256
6bfc8ed0adcbad9b65b186fb4dfdaf28ad1d4c278749df5a55e7efcbc8071bd3
sha512
78d8dd61c09e353834754c01d1e74663c9c09202fc48a851af8a39b356d6b310ab9376eb682bb1c2ce5ddf71e8f168bb64a41c2b3ce402aa50bbb66ba4173435
ripemd-160
297930eb041e4be000d7a1766831d9a482cb381c
Diameter
41382770
Circumference
130007806.2172
Area
1.3450207857227E+15
Volume
3.7107123880521E+22
Surface area
5.3800831428908E+15
Circumference
130007806.2172
Perimeter
82765540
Area
428133413218225
Diagonal
29262037.291283
Surface area
2568800479309350
Volume
8.8586732842624E+21
Space diagonal
35838530.098969
Perimeter
62074155
Area
1.8538720602796E+14
Altitude
17919265.049484
Surface area
1.8538720602796E+14
Volume
1.044004658603E+21
Height
9754012.4304277