20403821 is an odd 8-digits composite number following 20403820
and preceding 20403822 . In scientific notation, it is written as 2.0403821 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 20254752 positive integers (up to 20403821) that are relatively prime to 20403821.
20403821 has 4 divisors, whose sum is 20552892
The reverse of 20403821 is 12830402
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million four hundred three thousand eight hundred twenty-one
Scientific notation
2.0403821 × 10^7
Engineering notation
2.0403821 × 10^6
Prime Factorization
137 × 148933
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20403821
Product of the distinct prime numbers
The prime factorization of 20403821 is 137 × 148933.
Since it has a total of 2 prime factors.
6 , 8 , 23 , 75 , 103 , 910 , 9001 , 6146 , 35674 , 80227 , 167646 , 20253 , 3753479 , 4684076 , 92584123 , 35209051 , 1179689 , 676959368 , 8563879053 , 9435403453
n×2
40807642
n×3
61211463
n×4
81615284
n×5
102019105
n÷2
10201910.5
n÷3
6801273.6666667
n÷3
5100955.25
n÷5
4080764.2
n2
416315911400041
n3
8.4944353356583E+21
n4
1.7331893808485E+29
n5
3.5363685885933E+36
2 √n
4517.058888259
3 √n
273.25650015076
4 √n
67.209068497183
5 √n
28.969586811314
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
-20403820
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 20403821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20403821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101011001101101
3
Ternary
1102101121210002
4
Quaternary
1031311121231
5
Quinary
20210410241
6
Senary
2005154045
8
Octal
115653155
10
Decimal
20403821
12
Duodecimal
69bb925
16
Hexadecimal
137566d
20
Vigesimal
67a9b1
36
Base36
c5bot
md5
427cbe277229f8dc9e56cf09f5bb6db3
sha1
06c968775183a227e89078a584069a605a3ee45a
sha256
23bfcacd7b4e9daf2c4e3e9387d3c456750288471c5dc58b5f578e808be326ab
sha512
2dc992710e6d70135842e185b5c3e0303e53c6e7feec6b0f985922645ea4a70b011204e6392250d497b32a611554769699d6d678a030a38e7afeaafaa1f410d3
ripemd-160
ce31278041b40e91c732a4111b98a8d9b0df4a50
Diameter
40807642
Circumference
128200988.31752
Area
1.3078950088269E+15
Volume
3.5581407529197E+22
Surface area
5.2315800353076E+15
Circumference
128200988.31752
Perimeter
81615284
Area
416315911400041
Diagonal
28855360.382433
Surface area
2497895468400246
Volume
8.4944353356583E+21
Space diagonal
35340454.640541
Perimeter
61211463
Area
1.8027007763605E+14
Altitude
17670227.32027
Surface area
1.8027007763605E+14
Volume
1.0010788046991E+21
Height
9618453.460811