20798821 is an odd 8-digits composite number following 20798820
and preceding 20798822 . In scientific notation, it is written as 2.0798821 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20789644 positive integers (up to 20798821) that are relatively prime to 20798821.
20798821 has 4 divisors, whose sum is 20808000
The reverse of 20798821 is 12889702
Previous prime number is 5099
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million seven hundred ninety-eight thousand eight hundred twenty-one
Scientific notation
2.0798821 × 10^7
Engineering notation
2.0798821 × 10^6
Prime Factorization
5099 × 4079
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20798821
Product of the distinct prime numbers
The prime factorization of 20798821 is 5099 × 4079.
Since it has a total of 2 prime factors.
1 , 8 , 36 , 49 , 668 , 215 , 3777 , 3007 , 63448 , 71437 , 883994 , 434498 , 4670849 , 8506937 , 10977342 , 67258251 , 362004762 , 317385308 , 5474286948 , 6891952911
n×2
41597642
n×3
62396463
n×4
83195284
n×5
103994105
n÷2
10399410.5
n÷3
6932940.3333333
n÷3
5199705.25
n÷5
4159764.2
n2
432590954990041
n3
8.9973818390569E+21
n4
1.871349343392E+29
n5
3.8921860021677E+36
2 √n
4560.5724421393
3 √n
275.00857714295
4 √n
67.532010499757
5 √n
29.080893334142
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
-20798820
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 20798821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20798821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010101110101100101
3
Ternary
1110010200121201
4
Quaternary
1033111311211
5
Quinary
20311030241
6
Senary
2021442501
8
Octal
117256545
10
Decimal
20798821
12
Duodecimal
6b70431
16
Hexadecimal
13d5d65
20
Vigesimal
69jh11
36
Base36
cdsh1
md5
ddb01beb94062f28af56b7f0156f8282
sha1
a1c382f695a840699137146840f0ce9ec551971c
sha256
e5946f972d9aea3bc73b590d1b7b00b1845d5aca32186774d1be990072adf4a5
sha512
d2ba8ca5439bb1ac709a13700f44eaddccf08ba1d739800cbd73a6f7790ea4b5b13eac8b927ea64d407409331900b098cbcbda2a73cfdaba991d5c52b768f07e
ripemd-160
61c76f9e025be7f2e52620e1c3bf8ee6141c9323
Diameter
41597642
Circumference
130682846.51386
Area
1.3590245662061E+15
Volume
3.7688144916165E+22
Surface area
5.4360982648244E+15
Circumference
130682846.51386
Perimeter
83195284
Area
432590954990041
Diagonal
29413974.73957
Surface area
2595545729940246
Volume
8.9973818390569E+21
Space diagonal
36024614.709531
Perimeter
62396463
Area
1.8731737823437E+14
Altitude
18012307.354765
Surface area
1.8731737823437E+14
Volume
1.0603516185536E+21
Height
9804658.2465234