20442821 is an odd 8-digits composite number following 20442820
and preceding 20442822 . In scientific notation, it is written as 2.0442821 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 17522412 positive integers (up to 20442821) that are relatively prime to 20442821.
20442821 has 4 divisors, whose sum is 23363232
The reverse of 20442821 is 12824402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred forty-two thousand eight hundred twenty-one
Scientific notation
2.0442821 × 10^7
Engineering notation
2.0442821 × 10^6
Prime Factorization
7 × 2920403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20442821
Product of the distinct prime numbers
The prime factorization of 20442821 is 7 × 2920403.
Since it has a total of 2 prime factors.
5 , 6 , 92 , 56 , 576 , 240 , 8067 , 6158 , 5257 , 39993 , 658493 , 608255 , 5285413 , 4302138 , 67832718 , 13907306 , 324855572 , 911080915 , 3340277445 , 2713301764
n×2
40885642
n×3
61328463
n×4
81771284
n×5
102214105
n÷2
10221410.5
n÷3
6814273.6666667
n÷3
5110705.25
n÷5
4088564.2
n2
417908930438041
n3
8.5432374592463E+21
n4
1.7464787413987E+29
n5
3.5702952290718E+36
2 √n
4521.3737956511
3 √n
273.43049077652
4 √n
67.241161468635
5 √n
28.980652886256
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
-20442820
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 20442821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20442821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111110111011000101
3
Ternary
1102110121021112
4
Quaternary
1031332323011
5
Quinary
20213132241
6
Senary
2010054405
8
Octal
115767305
10
Decimal
20442821
12
Duodecimal
6a1a405
16
Hexadecimal
137eec5
20
Vigesimal
67f711
36
Base36
c65s5
md5
877423b2d41879e916dbe230f274c372
sha1
b0027bf662f3e52bca5f0627b3d150e951ce060a
sha256
a6e051852e7e1eb12920b0c4a59093ce2ef192e3394f7121570fb1c56a8dbc90
sha512
3a3c0ff5b41da3e53a300009984a0e0f7151eff20584c71dab4bfac78e954c743d9a3ac46b159fba0917231707c947dcfbbc543119f60bac3560e09bc4f38086
ripemd-160
b0224d97e4e6ebbf983ee9115b0068480cfc27ae
Diameter
40885642
Circumference
128446032.5445
Area
1.3128996257337E+15
Volume
3.5785829386455E+22
Surface area
5.2515985029349E+15
Circumference
128446032.5445
Perimeter
81771284
Area
417908930438041
Diagonal
28910514.711366
Surface area
2507453582628246
Volume
8.5432374592463E+21
Space diagonal
35408004.622036
Perimeter
61328463
Area
1.8095987511386E+14
Altitude
17704002.311018
Surface area
1.8095987511386E+14
Volume
1.00683019012E+21
Height
9636838.2371218