20681187 is an odd 8-digits composite number following 20681186
and preceding 20681188 . In scientific notation, it is written as 2.0681187 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13414752 positive integers (up to 20681187) that are relatively prime to 20681187.
20681187 has 8 divisors, whose sum is 28320336
The reverse of 20681187 is 78118602
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-one thousand one hundred eighty-seven
Scientific notation
2.0681187 × 10^7
Engineering notation
2.0681187 × 10^6
Prime Factorization
3 × 37 × 186317
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681187
Product of the distinct prime numbers
The prime factorization of 20681187 is 3 × 37 × 186317.
Since it has a total of 3 prime factors.
9 , 2 , 85 , 39 , 28 , 824 , 7845 , 9865 , 65673 , 54150 , 395631 , 838760 , 8759110 , 5189384 , 21841924 , 56986866 , 313698192 , 984477900 , 7305162279 , 1642240645
n×2
41362374
n×3
62043561
n×4
82724748
n×5
103405935
n÷2
10340593.5
n÷3
6893729
n÷3
5170296.75
n÷5
4136237.4
n2
427711495728969
n3
8.8455814252205E+21
n4
1.8293712357871E+29
n5
3.7833568619734E+36
2 √n
4547.6573089889
3 √n
274.48913198799
4 √n
67.436320399239
5 √n
29.047923510034
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
-20681186
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 20681187 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681187) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001000111100011
3
Ternary
1102220201020220
4
Quaternary
1032321013203
5
Quinary
20243244222
6
Senary
2015134123
8
Octal
116710743
10
Decimal
20681187
12
Duodecimal
6b14343
16
Hexadecimal
13b91e3
20
Vigesimal
6952j7
36
Base36
cb9pf
md5
36140d65531c972faa8975cc1d123b90
sha1
2859bc351b4b6b961c10aefe5eeaaca859e313f3
sha256
22e32a24ba33e9c4d319a3d4724610478f48c18d9b253e64f64286bc65db3b23
sha512
008bf10ce1ee7157b0c8261d2f5441085197043ff2a482ebac1dc0ce643f52a1097ec53616ac6169c1b1ef79b9fb91b20272fd2e9ebda9314ac962155ab680f7
ripemd-160
c813ecb88d285604c3800661ef8a84f56f1c1e9b
Diameter
41362374
Circumference
129943730.29343
Area
1.343695292838E+15
Volume
3.7052284829604E+22
Surface area
5.3747811713521E+15
Circumference
129943730.29343
Perimeter
82724748
Area
427711495728969
Diagonal
29247615.141374
Surface area
2566268974373814
Volume
8.8455814252205E+21
Space diagonal
35820866.644833
Perimeter
62043561
Area
1.8520451039596E+14
Altitude
17910433.322416
Surface area
1.8520451039596E+14
Volume
1.0424617682185E+21
Height
9749205.0471247