20783385 is an odd 8-digits composite number following 20783384
and preceding 20783386 . In scientific notation, it is written as 2.0783385 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 9499680 positive integers (up to 20783385) that are relatively prime to 20783385.
20783385 has 16 divisors, whose sum is 28858752
The reverse of 20783385 is 58338702
Previous prime number is 81
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million seven hundred eighty-three thousand three hundred eighty-five
Scientific notation
2.0783385 × 10^7
Engineering notation
2.0783385 × 10^6
Prime Factorization
5 × 7 × 81 × 7331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20783385
Product of the distinct prime numbers
The prime factorization of 20783385 is 5 × 7 × 81 × 7331.
Since it has a total of 4 prime factors.
4 , 10 , 55 , 1 , 226 , 900 , 6625 , 6024 , 69644 , 66202 , 429690 , 385151 , 203951 , 9114108 , 9395042 , 33846631 , 622065436 , 437741773 , 4073857374 , 6175237185
n×2
41566770
n×3
62350155
n×4
83133540
n×5
103916925
n÷2
10391692.5
n÷3
6927795
n÷3
5195846.25
n÷5
4156677
n2
431949092058225
n3
8.9773642806465E+21
n4
1.8658001812992E+29
n5
3.8777643501012E+36
2 √n
4558.8797966167
3 √n
274.94052708391
4 √n
67.519477164865
5 √n
29.076575531815
1 , 5 , 7 , 35 , 81 , 405 , 567 , 2835 , 7331 , 36655 , 51317 , 256585 , 593811 , 2969055 , 4156677 , 20783385
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
-20783384
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 20783385 can be divided by 16 positive divisors.
The sum of these divisors (counting 20783385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010000100011001
3
Ternary
1110002220110000
4
Quaternary
1033102010121
5
Quinary
20310032020
6
Senary
2021243213
8
Octal
117220431
10
Decimal
20783385
12
Duodecimal
6b63509
16
Hexadecimal
13d2119
20
Vigesimal
69hi95
36
Base36
cdgk9
md5
74cef6c71f4f040abc7ac18fdb6e911b
sha1
86022bcb4ab34338d226747cb7699caed98807c4
sha256
b06a4a9d3d1b571f255e6c65e36df4c84490f66bd4250068c84af5fe6cdbc488
sha512
3e9fa603f7dbab9281e34e8666d78793b7865a5197bf040c7eb83405d0411a133c795535877ae81fd8dc38642276c27f8dba1849bd60c48719278dc615c01302
ripemd-160
4c42682bea22fd92f40b9bfb02749c9c16a25716
Diameter
41566770
Circumference
130585859.26546
Area
1.3570080943349E+15
Volume
3.7604295563571E+22
Surface area
5.4280323773396E+15
Circumference
130585859.26546
Perimeter
83133540
Area
431949092058225
Diagonal
29392144.939022
Surface area
2591694552349350
Volume
8.9773642806465E+21
Space diagonal
35997878.773265
Perimeter
62350155
Area
1.8703944343202E+14
Altitude
17998939.386632
Surface area
1.8703944343202E+14
Volume
1.0579925266712E+21
Height
9797381.6463405