21782020 is an even 8-digits composite number following 21782019
and preceding 21782021 . In scientific notation, it is written as 2.1782020 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 24 positive divisors.
There are 8042496 positive integers (up to 21782020) that are relatively prime to 21782020.
21782020 has 24 divisors, whose sum is 49261464
The reverse of 21782020 is 02028712
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million seven hundred eighty-two thousand twenty
Scientific notation
2.1782020 × 10^7
Engineering notation
2.1782020 × 10^6
Prime Factorization
2 × 2 × 5 × 13 × 83777
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10891010
Product of the distinct prime numbers
The prime factorization of 21782020 is 2 × 2 × 5 × 13 × 83777.
Since it has a total of 5 prime factors.
5 , 8 , 42 , 30 , 58 , 407 , 3892 , 3176 , 36856 , 25598 , 528754 , 439655 , 8849305 , 9256545 , 8836326 , 76747115 , 463911677 , 34725514 , 2183581354 , 6467871950
n×2
43564040
n×3
65346060
n×4
87128080
n×5
108910100
n÷2
10891010
n÷3
7260673.3333333
n÷3
5445505
n÷5
4356404
n2
474456395280400
n3
1.0334618691126E+22
n4
2.2510887102247E+29
n5
4.9033259307889E+36
2 √n
4667.1211683435
3 √n
279.27542249089
4 √n
68.316331637051
5 √n
29.350778873845
1 , 2 , 4 , 5 , 10 , 13 , 20 , 26 , 52 , 65 , 130 , 260 , 83777 , 167554 , 335108 , 418885 , 837770 , 1089101 , 1675540 , 2178202 , 4356404 , 5445505 , 10891010 , 21782020
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21782019
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21782020 can be divided by 24 positive divisors.
The sum of these divisors (counting 21782020) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011000101111000000100
3
Ternary
1111222122022111
4
Quaternary
1103011320010
5
Quinary
21034011040
6
Senary
2054510404
8
Octal
123057004
10
Decimal
21782020
12
Duodecimal
7365404
16
Hexadecimal
14c5e04
20
Vigesimal
6g2f10
36
Base36
cyv44
md5
94d970c681e5f5e5439bb5de385b82a1
sha1
e0add698f526df2ead087ddbce6ce21be08dabde
sha256
a288f18b429d4283dcc2f8c9cf81139dcd076958cee3986d0b22e6b50616ea1b
sha512
71d1e83eecf4287845e72af07a851066be0e75e962fa6a0e27e50aa79b338a9e61733ec2dcc133e50fcb6af996b811440b01109e67f625c7da2856b04f83c99b
ripemd-160
92b078801babfbf57bee7a8206612844eaabcc0a
Diameter
43564040
Circumference
136860468.02469
Area
1.4905487258616E+15
Volume
4.3289549543589E+22
Surface area
5.9621949034464E+15
Circumference
136860468.02469
Perimeter
87128080
Area
474456395280400
Diagonal
30804428.099882
Surface area
2846738371682400
Volume
1.0334618691126E+22
Space diagonal
37727565.331481
Perimeter
65346060
Area
2.0544564565041E+14
Altitude
18863782.665741
Surface area
2.0544564565041E+14
Volume
1.217946492912E+21
Height
10268142.699961