20687746 is an even 8-digits composite number following 20687745
and preceding 20687747 . In scientific notation, it is written as 2.0687746 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 10285908 positive integers (up to 20687746) that are relatively prime to 20687746.
20687746 has 8 divisors, whose sum is 31205520
The reverse of 20687746 is 64778602
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-seven thousand seven hundred forty-six
Scientific notation
2.0687746 × 10^7
Engineering notation
2.0687746 × 10^6
Prime Factorization
2 × 179 × 57787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20687746
Product of the distinct prime numbers
The prime factorization of 20687746 is 2 × 179 × 57787.
Since it has a total of 3 prime factors.
1 , 5 , 47 , 16 , 115 , 921 , 8367 , 5141 , 41633 , 65501 , 699891 , 144006 , 1768595 , 96546 , 94667289 , 95592740 , 849160740 , 841274944 , 5345638562 , 7407982269
n×2
41375492
n×3
62063238
n×4
82750984
n×5
103438730
n÷2
10343873
n÷3
6895915.3333333
n÷3
5171936.5
n÷5
4137549.2
n2
427982834560516
n3
8.854000173748E+21
n4
1.8316930667845E+29
n5
3.78936009156E+36
2 √n
4548.3783923504
3 √n
274.51814682681
4 √n
67.44166658936
5 √n
29.049765775326
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
-20687745
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 20687746 can be divided by 8 positive divisors.
The sum of these divisors (counting 20687746) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010101110000010
3
Ternary
1102221001020211
4
Quaternary
1032322232002
5
Quinary
20244001441
6
Senary
2015224334
8
Octal
116725602
10
Decimal
20687746
12
Duodecimal
6b180aa
16
Hexadecimal
13bab82
20
Vigesimal
695j76
36
Base36
cberm
md5
9fd5ec3244e59d7999a32d55f6adb0b0
sha1
37f49051dfd9db2e7fafbab6936ae8eba92e924e
sha256
98cd9fa511869b5e0208169acf433c2c7f0ffa133d72f1277e8ca8b57c2321a0
sha512
bf4f879cfb9eb6bd84a83c7154ead3fd6fae6e7d21b7189d30b1bce21a4c85e7f9d68ded5c83a5761a6c296af03eaeaf0b6b98263eaad2459b55ca81fd2643aa
ripemd-160
b103e86f9bf1d31f509a8fee435042cd3a79787f
Diameter
41375492
Circumference
129984941.70586
Area
1.3445477289179E+15
Volume
3.7087549200973E+22
Surface area
5.3781909156714E+15
Circumference
129984941.70586
Perimeter
82750984
Area
427982834560516
Diagonal
29256890.96813
Surface area
2567897007363096
Volume
8.854000173748E+21
Space diagonal
35832227.16608
Perimeter
62063238
Area
1.8532200355654E+14
Altitude
17916113.58304
Surface area
1.8532200355654E+14
Volume
1.0434539272473E+21
Height
9752296.9893766