20782020 is an even 8-digits composite number following 20782019
and preceding 20782021 . In scientific notation, it is written as 2.0782020 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 4750080 positive integers (up to 20782020) that are relatively prime to 20782020.
20782020 has 12 divisors, whose sum is 36715644
The reverse of 20782020 is 02028702
Previous prime number is 105
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million seven hundred eighty-two thousand twenty
Scientific notation
2.0782020 × 10^7
Engineering notation
2.0782020 × 10^6
Prime Factorization
2 × 2 × 105 × 49481
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10391010
Product of the distinct prime numbers
The prime factorization of 20782020 is 2 × 2 × 105 × 49481.
Since it has a total of 4 prime factors.
5 , 1 , 42 , 79 , 970 , 409 , 3347 , 5435 , 36869 , 83449 , 797270 , 422158 , 5748816 , 1838719 , 77750380 , 45529285 , 66327798 , 735572812 , 5594977773 , 3921092153
n×2
41564040
n×3
62346060
n×4
83128080
n×5
103910100
n÷2
10391010
n÷3
6927340
n÷3
5195505
n÷5
4156404
n2
431892355280400
n3
8.9755955652844E+21
n4
1.8653100654965E+29
n5
3.876491108735E+36
2 √n
4558.7300863289
3 √n
274.93450782003
4 √n
67.518368510568
5 √n
29.076193586638
1 , 2 , 4 , 105 , 210 , 420 , 49481 , 98962 , 197924 , 5195505 , 10391010 , 20782020
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
-20782019
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 20782020 can be divided by 12 positive divisors.
The sum of these divisors (counting 20782020) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010001101111000100
3
Ternary
1110002211120110
4
Quaternary
1033101233010
5
Quinary
20310011040
6
Senary
2021233020
8
Octal
117215704
10
Decimal
20782020
12
Duodecimal
6b62770
16
Hexadecimal
13d1bc4
20
Vigesimal
69hf10
36
Base36
cdfic
md5
bd3f202939c59ce05f8338a4de28add6
sha1
72e37759feee968c3d57f724b03f94856563d116
sha256
332089387384417a52d85857ac5bba84d6938d0e27c372e9c3fa681732b68e58
sha512
8ec380d4917f1acfce440d563a30318ad772753e31d58a68911e8fd2262f043375fe66f5cb031e71e9de3a1775321ad38432b57a67157a0a31f480d5b287daa6
ripemd-160
5c77e59584e85ded76c7a085f4b71d397211665b
Diameter
41564040
Circumference
130577282.71751
Area
1.3568298504905E+15
Volume
3.7596886785987E+22
Surface area
5.427319401962E+15
Circumference
130577282.71751
Perimeter
83128080
Area
431892355280400
Diagonal
29390214.537509
Surface area
2591354131682400
Volume
8.9755955652844E+21
Space diagonal
35995514.523913
Perimeter
62346060
Area
1.8701487568656E+14
Altitude
17997757.261956
Surface area
1.8701487568656E+14
Volume
1.0577840815667E+21
Height
9796738.1791696