20681810 is an even 8-digits composite number following 20681809
and preceding 20681811 . In scientific notation, it is written as 2.0681810 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 8212656 positive integers (up to 20681810) that are relatively prime to 20681810.
20681810 has 16 divisors, whose sum is 37497600
The reverse of 20681810 is 01818602
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million six hundred eighty-one thousand eight hundred ten
Scientific notation
2.0681810 × 10^7
Engineering notation
2.0681810 × 10^6
Prime Factorization
2 × 5 × 139 × 14879
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20681810
Product of the distinct prime numbers
The prime factorization of 20681810 is 2 × 5 × 139 × 14879.
Since it has a total of 4 prime factors.
3 , 8 , 19 , 18 , 50 , 982 , 6957 , 3848 , 48466 , 9165 , 252542 , 48423 , 5315558 , 3662428 , 32947522 , 93628725 , 207812819 , 916537695 , 9699107835 , 9194100287
n×2
41363620
n×3
62045430
n×4
82727240
n×5
103409050
n÷2
10340905
n÷3
6893936.6666667
n÷3
5170452.5
n÷5
4136362
n2
427737264876100
n3
8.8463808420872E+21
n4
1.8295916776369E+29
n5
3.7839267454467E+36
2 √n
4547.7258052789
3 √n
274.49188819685
4 √n
67.436828256368
5 √n
29.048098515833
1 , 2 , 5 , 10 , 139 , 278 , 695 , 1390 , 14879 , 29758 , 74395 , 148790 , 2068181 , 4136362 , 10340905 , 20681810
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681809
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681810 can be divided by 16 positive divisors.
The sum of these divisors (counting 20681810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111001010001010010
3
Ternary
1102220202002222
4
Quaternary
1032321101102
5
Quinary
20243304220
6
Senary
2015141042
8
Octal
116712122
10
Decimal
20681810
12
Duodecimal
6b14782
16
Hexadecimal
13b9452
20
Vigesimal
6954aa
36
Base36
cba6q
md5
6051065bd68a2fec142beb26d897d702
sha1
39f55d23c974c2cf6cbabd535e970cb268c58418
sha256
b1d13a283c0120dd86df88c31d95295123df55e40b3b006c0c60a2105e03eef5
sha512
9ebba35a3b50fdae42cd659cada76ea70d37460af150b48dd9da7e025173ce69093e6c14cacbc79984459431ea168e912dc3e57d5eeb1a38da1e05e9b3552f76
ripemd-160
69a5e1409ca50c8bb81feec26c38c0717685f69e
Diameter
41363620
Circumference
129947644.71788
Area
1.3437762490013E+15
Volume
3.7055633419145E+22
Surface area
5.3751049960054E+15
Circumference
129947644.71788
Perimeter
82727240
Area
427737264876100
Diagonal
29248496.196424
Surface area
2566423589256600
Volume
8.8463808420872E+21
Space diagonal
35821945.712486
Perimeter
62045430
Area
1.8521566876399E+14
Altitude
17910972.856243
Surface area
1.8521566876399E+14
Volume
1.0425559803998E+21
Height
9749498.7321412