20402821 is an odd 8-digits composite number following 20402820
and preceding 20402822 . In scientific notation, it is written as 2.0402821 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20393644 positive integers (up to 20402821) that are relatively prime to 20402821.
20402821 has 4 divisors, whose sum is 20412000
The reverse of 20402821 is 12820402
Previous prime number is 3779
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million four hundred two thousand eight hundred twenty-one
Scientific notation
2.0402821 × 10^7
Engineering notation
2.0402821 × 10^6
Prime Factorization
3779 × 5399
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20402821
Product of the distinct prime numbers
The prime factorization of 20402821 is 3779 × 5399.
Since it has a total of 2 prime factors.
5 , 3 , 7 , 3 , 669 , 3 , 2902 , 5094 , 74514 , 68004 , 724398 , 931967 , 6702934 , 4325968 , 12130063 , 71718436 , 856368552 , 799112437 , 4310576244 , 4788199545
n×2
40805642
n×3
61208463
n×4
81611284
n×5
102014105
n÷2
10201410.5
n÷3
6800940.3333333
n÷3
5100705.25
n÷5
4080564.2
n2
416275104758041
n3
8.4931864491346E+21
n4
1.7328496284132E+29
n5
3.5355020788431E+36
2 √n
4516.948195408
3 √n
273.25203593849
4 √n
67.208244995745
5 √n
28.969302843377
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
-20402820
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 20402821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20402821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101001010000101
3
Ternary
1102101120102001
4
Quaternary
1031311022011
5
Quinary
20210342241
6
Senary
2005145301
8
Octal
115651205
10
Decimal
20402821
12
Duodecimal
69bb231
16
Hexadecimal
1375285
20
Vigesimal
67a711
36
Base36
c5ax1
md5
428519dbcf797ffff033ed36783e2e8a
sha1
929680f0a1babfd2be1f412e14215a9fcda0d5e8
sha256
c02a851579c4c30aa1d4e78b7eab6c52f3f4e683b43fc017ef33b0e133f9d12a
sha512
e055f11e6bd9f7fdb3a31b55017e7e58d77d5457a88de470ce5a34280ba9bbebf371ce1d0f7dd329599023953187b7380d66e1d357b97728346a3238540e724a
ripemd-160
d4ba459bccc5a0731f8a008a483328cb7eca313a
Diameter
40805642
Circumference
128194705.13222
Area
1.3077668109802E+15
Volume
3.5576176205559E+22
Surface area
5.2310672439207E+15
Circumference
128194705.13222
Perimeter
81611284
Area
416275104758041
Diagonal
28853946.168871
Surface area
2497650628548246
Volume
8.4931864491346E+21
Space diagonal
35338722.589733
Perimeter
61208463
Area
1.8025240784175E+14
Altitude
17669361.294867
Surface area
1.8025240784175E+14
Volume
1.0009316220108E+21
Height
9617982.0562902