20689780 is an even 8-digits composite number following 20689779
and preceding 20689781 . In scientific notation, it is written as 2.0689780 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 8275904 positive integers (up to 20689780) that are relatively prime to 20689780.
20689780 has 12 divisors, whose sum is 43448580
The reverse of 20689780 is 08798602
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-nine thousand seven hundred eighty
Scientific notation
2.0689780 × 10^7
Engineering notation
2.0689780 × 10^6
Prime Factorization
2 × 2 × 5 × 1034489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10344890
Product of the distinct prime numbers
The prime factorization of 20689780 is 2 × 2 × 5 × 1034489.
Since it has a total of 4 prime factors.
2 , 8 , 22 , 23 , 428 , 661 , 8881 , 2138 , 69833 , 35480 , 65072 , 613646 , 2802892 , 3564301 , 62294944 , 44066132 , 859901067 , 84703725 , 8957658174 , 8202677976
n×2
41379560
n×3
62069340
n×4
82759120
n×5
103448900
n÷2
10344890
n÷3
6896593.3333333
n÷3
5172445
n÷5
4137956
n2
428066996448400
n3
8.8566119817782E+21
n4
1.8324135344835E+29
n5
3.7912232897487E+36
2 √n
4548.6019830273
3 √n
274.52714332183
4 √n
67.443324228772
5 √n
29.050336982068
1 , 2 , 4 , 5 , 10 , 20 , 1034489 , 2068978 , 4137956 , 5172445 , 10344890 , 20689780
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20689779
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20689780 can be divided by 12 positive divisors.
The sum of these divisors (counting 20689780) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111011001101110100
3
Ternary
1102221011001011
4
Quaternary
1032323031310
5
Quinary
20244033110
6
Senary
2015242004
8
Octal
116731564
10
Decimal
20689780
12
Duodecimal
6b19304
16
Hexadecimal
13bb374
20
Vigesimal
696490
36
Base36
cbgc4
md5
09947dbcc01938018d48103194846038
sha1
4ab295a5d6944aee519e6c74fa24fd32b39ab01e
sha256
c58859c9171200eaaa70fb149a6244c5750180eb4e43f41bb2bf364c5513ec28
sha512
1de355649e13dd75760052b947a42afd034261447ae8162e21afa448de8233625ce67081f245e8fc9121ee64e8c8bf59e1c0f90e3b617425d3c684d6f0ad1378
ripemd-160
08dccfd773157fc3b5d715c4d7873b016f45017a
Diameter
41379560
Circumference
129997721.70478
Area
1.3448121312865E+15
Volume
3.7098489516866E+22
Surface area
5.3792485251462E+15
Circumference
129997721.70478
Perimeter
82759120
Area
428066996448400
Diagonal
29259767.478516
Surface area
2568401978690400
Volume
8.8566119817782E+21
Space diagonal
35835750.157422
Perimeter
62069340
Area
1.8535844672301E+14
Altitude
17917875.078711
Surface area
1.8535844672301E+14
Volume
1.0437617317756E+21
Height
9753255.8261719