20691639 is an odd 8-digits composite number following 20691638
and preceding 20691640 . In scientific notation, it is written as 2.0691639 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 13794408 positive integers (up to 20691639) that are relatively prime to 20691639.
20691639 has 8 divisors, whose sum is 30654320
The reverse of 20691639 is 93619602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred ninety-one thousand six hundred thirty-nine
Scientific notation
2.0691639 × 10^7
Engineering notation
2.0691639 × 10^6
Prime Factorization
9 × 3 × 766357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20691639
Product of the distinct prime numbers
The prime factorization of 20691639 is 9 × 3 × 766357.
Since it has a total of 3 prime factors.
4 , 7 , 14 , 99 , 40 , 659 , 8138 , 6854 , 94775 , 93775 , 509461 , 922412 , 2619472 , 265121 , 64504335 , 17401591 , 73806131 , 574434404 , 6117662270 , 4868105065
n×2
41383278
n×3
62074917
n×4
82766556
n×5
103458195
n÷2
10345819.5
n÷3
6897213
n÷3
5172909.75
n÷5
4138327.8
n2
428143924506321
n3
8.858999525928E+21
n4
1.8330722009167E+29
n5
3.7929268242305E+36
2 √n
4548.806326939
3 √n
274.53536526644
4 √n
67.444839142361
5 √n
29.050859004396
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
-20691638
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 20691639 can be divided by 8 positive divisors.
The sum of these divisors (counting 20691639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011101010110111
3
Ternary
1102221020121000
4
Quaternary
1032323222313
5
Quinary
20244113024
6
Senary
2015254343
8
Octal
116735267
10
Decimal
20691639
12
Duodecimal
6b1a3b3
16
Hexadecimal
13bbab7
20
Vigesimal
69691j
36
Base36
cbhrr
md5
bbe247dcfd8c09d90d018037b24cd95a
sha1
53e429c3257114aacf9767f68a25cd3920765bd1
sha256
66a0004367d15dc15b483a5a2f4a80992e37fa441af906760da4abcbada2b763
sha512
16e39b9b0aa690feff99134d056b9f7653b4451b02cf326a15bf572315a235507099c0d4151974bea9d956520bce8b0bd71c69f9d090ddcff6fcf2dda06683b5
ripemd-160
34c406419f878b28cb91fc58dabee47f33769ecf
Diameter
41383278
Circumference
130009402.14626
Area
1.3450538079082E+15
Volume
3.7108490438415E+22
Surface area
5.3802152316326E+15
Circumference
130009402.14626
Perimeter
82766556
Area
428143924506321
Diagonal
29262396.501528
Surface area
2568863547037926
Volume
8.858999525928E+21
Space diagonal
35838970.039874
Perimeter
62074917
Area
1.8539175754922E+14
Altitude
17919485.019937
Surface area
1.8539175754922E+14
Volume
1.044043106552E+21
Height
9754132.167176