20782021 is an odd 8-digits composite number following 20782020
and preceding 20782022 . In scientific notation, it is written as 2.0782021 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 19183392 positive integers (up to 20782021) that are relatively prime to 20782021.
20782021 has 4 divisors, whose sum is 22380652
The reverse of 20782021 is 12028702
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million seven hundred eighty-two thousand twenty-one
Scientific notation
2.0782021 × 10^7
Engineering notation
2.0782021 × 10^6
Prime Factorization
13 × 1598617
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20782021
Product of the distinct prime numbers
The prime factorization of 20782021 is 13 × 1598617.
Since it has a total of 2 prime factors.
9 , 7 , 38 , 19 , 871 , 195 , 5266 , 7034 , 24269 , 6628 , 120238 , 889411 , 2358416 , 784143 , 86458279 , 21177502 , 974740501 , 692541404 , 2677184232 , 2581979421
n×2
41564042
n×3
62346063
n×4
83128084
n×5
103910105
n÷2
10391010.5
n÷3
6927340.3333333
n÷3
5195505.25
n÷5
4156404.2
n2
431892396844441
n3
8.9755968609615E+21
n4
1.8653104245204E+29
n5
3.8764920413901E+36
2 √n
4558.7301960085
3 √n
274.93451222985
4 √n
67.518369322789
5 √n
29.076193866459
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20782020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20782021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20782021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001101111000101
3
Ternary
1110002211120111
4
Quaternary
1033101233011
5
Quinary
20310011041
6
Senary
2021233021
8
Octal
117215705
10
Decimal
20782021
12
Duodecimal
6b62771
16
Hexadecimal
13d1bc5
20
Vigesimal
69hf11
36
Base36
cdfid
md5
e393f947a265c7123ffc882898637296
sha1
5c54fe892648dfb3f1f97a64f691d7e58f8a05eb
sha256
753f5e5932b8360c1727ffd60520a4890a50309aa07bf2fd81fccab3768a88e6
sha512
331af0448a46f3b746aeda8284ba3d1fcd69039f742182512a8c3c9b48f344ea737e1acbff22c88bc6b3a1a2aa91955fa8a05ddb3b5f078f2c9f4f358a49a223
ripemd-160
272fa286385d89704d27cc560e3ee8b8dcd37702
Diameter
41564042
Circumference
130577289.0007
Area
1.3568299810678E+15
Volume
3.7596892213307E+22
Surface area
5.4273199242711E+15
Circumference
130577289.0007
Perimeter
83128084
Area
431892396844441
Diagonal
29390215.951722
Surface area
2591354381066646
Volume
8.9755968609615E+21
Space diagonal
35995516.255963
Perimeter
62346063
Area
1.8701489368432E+14
Altitude
17997758.127982
Surface area
1.8701489368432E+14
Volume
1.0577842342638E+21
Height
9796738.6505742