20786913 is an odd 8-digits composite number following 20786912
and preceding 20786914 . In scientific notation, it is written as 2.0786913 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 11878200 positive integers (up to 20786913) that are relatively prime to 20786913.
20786913 has 8 divisors, whose sum is 26396160
The reverse of 20786913 is 31968702
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million seven hundred eighty-six thousand nine hundred thirteen
Scientific notation
2.0786913 × 10^7
Engineering notation
2.0786913 × 10^6
Prime Factorization
9 × 7 × 329951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20786913
Product of the distinct prime numbers
The prime factorization of 20786913 is 9 × 7 × 329951.
Since it has a total of 3 prime factors.
4 , 8 , 84 , 62 , 81 , 821 , 6184 , 925 , 96467 , 37045 , 398041 , 443890 , 5554807 , 7858596 , 79715095 , 37001113 , 562497337 , 181335796 , 5952545633 , 5624478092
n×2
41573826
n×3
62360739
n×4
83147652
n×5
103934565
n÷2
10393456.5
n÷3
6928971
n÷3
5196728.25
n÷5
4157382.6
n2
432095752069569
n3
8.9819368059397E+21
n4
1.8670673895657E+29
n5
3.8810567392039E+36
2 √n
4559.2667173571
3 √n
274.95608334515
4 √n
67.522342356861
5 √n
29.07756262024
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
-20786912
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 20786913 can be divided by 8 positive divisors.
The sum of these divisors (counting 20786913) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010010111011100001
3
Ternary
1110010002021200
4
Quaternary
1033102323201
5
Quinary
20310140123
6
Senary
2021311413
8
Octal
117227341
10
Decimal
20786913
12
Duodecimal
6b65569
16
Hexadecimal
13d2ee1
20
Vigesimal
69i75d
36
Base36
cdja9
md5
9e8a980e12e209e81edbaf52e6da0133
sha1
fb2f028215492ef6914004d2d7e07e9223abf05e
sha256
e640cc7f72c28afd0cdcac88833b375b0d50d958119c8e0814980600f2655bed
sha512
ab5795ebb793e465db84b5e1d4a0d416c4bfbbf0c32a862b068098cef3d101d8cc47f4bead5d3ad1a7a01157b438b266a7b6540aae9a05fbce89e53dee596647
ripemd-160
c50de029800cc6c8acf35e63bde11b744a552568
Diameter
41573826
Circumference
130608026.34322
Area
1.3574688403491E+15
Volume
3.7623448912731E+22
Surface area
5.4298753613965E+15
Circumference
130608026.34322
Perimeter
83147652
Area
432095752069569
Diagonal
29397134.28447
Surface area
2592574512417414
Volume
8.9819368059397E+21
Space diagonal
36003989.448514
Perimeter
62360739
Area
1.8710294907979E+14
Altitude
18001994.724257
Surface area
1.8710294907979E+14
Volume
1.0585314039448E+21
Height
9799044.7614899