20685613 is an odd 8-digits composite number following 20685612
and preceding 20685614 . In scientific notation, it is written as 2.0685613 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18435648 positive integers (up to 20685613) that are relatively prime to 20685613.
20685613 has 8 divisors, whose sum is 23045400
The reverse of 20685613 is 31658602
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-five thousand six hundred thirteen
Scientific notation
2.0685613 × 10^7
Engineering notation
2.0685613 × 10^6
Prime Factorization
13 × 29 × 54869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20685613
Product of the distinct prime numbers
The prime factorization of 20685613 is 13 × 29 × 54869.
Since it has a total of 3 prime factors.
5 , 6 , 20 , 87 , 37 , 645 , 4188 , 1978 , 1185 , 56160 , 388188 , 61588 , 9259728 , 7663016 , 64540653 , 45171981 , 253171903 , 62312657 , 619607570 , 9009182574
n×2
41371226
n×3
62056839
n×4
82742452
n×5
103428065
n÷2
10342806.5
n÷3
6895204.3333333
n÷3
5171403.25
n÷5
4137122.6
n2
427894585185769
n3
8.8512617939484E+21
n4
1.830937760313E+29
n5
3.7874069936922E+36
2 √n
4548.143907134
3 √n
274.50871181582
4 √n
67.439928137076
5 √n
29.049166718222
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
-20685612
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 20685613 can be divided by 8 positive divisors.
The sum of these divisors (counting 20685613) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010001100101101
3
Ternary
1102220221022211
4
Quaternary
1032322030231
5
Quinary
20243414423
6
Senary
2015210421
8
Octal
116721455
10
Decimal
20685613
12
Duodecimal
6b16a11
16
Hexadecimal
13ba32d
20
Vigesimal
695e0d
36
Base36
cbd4d
md5
7aa0fbcafedd96aa65e413cae33a680b
sha1
203cba3290e289ffe46194cfd7c3411c3fa3d852
sha256
504c9342394f641e33fe60c22ea90b5b4b34c5ead693b0f4fc47b1c14c207103
sha512
bf866d4fcc3ec9960c6637b1f3d8d197e299dadfeb8307870cd759ae52a3c07ae651a46d401ed640b0c5529d33a1ed8539400d4bcffcc090f61d87756f699682
ripemd-160
8b6304a5bb39dbecf4b96bf0740d67eb79bac21b
Diameter
41371226
Circumference
129971539.6716
Area
1.3442704853305E+15
Volume
3.7076078702491E+22
Surface area
5.3770819413219E+15
Circumference
129971539.6716
Perimeter
82742452
Area
427894585185769
Diagonal
29253874.450601
Surface area
2567367511114614
Volume
8.8512617939484E+21
Space diagonal
35828532.701707
Perimeter
62056839
Area
1.8528379045634E+14
Altitude
17914266.350854
Surface area
1.8528379045634E+14
Volume
1.043131206093E+21
Height
9751291.4835337