20689906 is an even 8-digits composite number following 20689905
and preceding 20689907 . In scientific notation, it is written as 2.0689906 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 10238208 positive integers (up to 20689906) that are relatively prime to 20689906.
20689906 has 8 divisors, whose sum is 31355100
The reverse of 20689906 is 60998602
Previous prime number is 97
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-nine thousand nine hundred six
Scientific notation
2.0689906 × 10^7
Engineering notation
2.0689906 × 10^6
Prime Factorization
2 × 97 × 106649
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20689906
Product of the distinct prime numbers
The prime factorization of 20689906 is 2 × 97 × 106649.
Since it has a total of 3 prime factors.
6 , 10 , 23 , 21 , 95 , 492 , 8709 , 8029 , 4003 , 79529 , 180932 , 974302 , 1080818 , 4531280 , 61070053 , 26606801 , 595666100 , 344519489 , 1048271160 , 8307797539
n×2
41379812
n×3
62069718
n×4
82759624
n×5
103449530
n÷2
10344953
n÷3
6896635.3333333
n÷3
5172476.5
n÷5
4137981.2
n2
428072210288836
n3
8.8567737920882E+21
n4
1.8324581722157E+29
n5
3.7913387332075E+36
2 √n
4548.6158334157
3 √n
274.52770060744
4 √n
67.443426910379
5 √n
29.050372365078
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
-20689905
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 20689906 can be divided by 8 positive divisors.
The sum of these divisors (counting 20689906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011001111110010
3
Ternary
1102221011012211
4
Quaternary
1032323033302
5
Quinary
20244034111
6
Senary
2015242334
8
Octal
116731762
10
Decimal
20689906
12
Duodecimal
6b193aa
16
Hexadecimal
13bb3f2
20
Vigesimal
6964f6
36
Base36
cbgfm
md5
d1556c4d57711102ba68b70cd12fc38b
sha1
2cd6d1937ef10b34f8361c7b8e462b8a42bdd1cc
sha256
d72f932eb45b44964c376171f0fcb454ee359e4e0c845edd7b63b52e19790918
sha512
a58709094fce5f6cf2fd2454e11f9ced4da8db6ba5bc887f0150a88d8ccfb589b7fdda7532cff3dcbff68b8ac7a22689a4275b6be62ee5c222dbd67f3d28e0b7
ripemd-160
20c983af68380e8d86600e66ba971aac9aa06614
Diameter
41379812
Circumference
129998513.38613
Area
1.3448285110494E+15
Volume
3.7099167306308E+22
Surface area
5.3793140441974E+15
Circumference
129998513.38613
Perimeter
82759624
Area
428072210288836
Diagonal
29259945.669424
Surface area
2568433261733016
Volume
8.8567737920882E+21
Space diagonal
35835968.395824
Perimeter
62069718
Area
1.8536070438214E+14
Altitude
17917984.197912
Surface area
1.8536070438214E+14
Volume
1.0437808013035E+21
Height
9753315.2231415