20021821 is an odd 8-digits prime number following 20021820
and preceding 20021822 . In scientific notation, it is written as 2.0021821 × 10^7.
The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors.
There are 20021820 positive integers (up to 20021821) that are relatively prime to 20021821.
20021821 has 2 divisors, whose sum is 20021822
The reverse of 20021821 is 12812002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million twenty-one thousand eight hundred twenty-one
Scientific notation
2.0021821 × 10^7
Engineering notation
2.0021821 × 10^6
Prime Factorization
20021821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20021821
Product of the distinct prime numbers
The prime factorization of 20021821 is 20021821.
Since it has a total of 1 prime factors.
1 , 2 , 31 , 4 , 746 , 397 , 9514 , 3488 , 47160 , 49113 , 682939 , 825076 , 354051 , 4682185 , 15332412 , 71341785 , 873185737 , 703946506 , 2639381233 , 3147601179
n×2
40043642
n×3
60065463
n×4
80087284
n×5
100109105
n÷2
10010910.5
n÷3
6673940.3333333
n÷3
5005455.25
n÷5
4004364.2
n2
400873316156041
n3
8.0262137797527E+21
n4
1.6069941560594E+29
n5
3.2174949340668E+36
2 √n
4474.5749518809
3 √n
271.54044462352
4 √n
66.892263767052
5 √n
28.86029160307
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20021822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10010911
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4474.5750636234
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999900109
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20021821) is 20021822, the average is 10010911.
Base
System
Value
2
Binary
1001100011000001000111101
3
Ternary
1101200012202221
4
Quaternary
1030120020331
5
Quinary
20111144241
6
Senary
1553045341
8
Octal
114301075
10
Decimal
20021821
12
Duodecimal
6856851
16
Hexadecimal
131823d
20
Vigesimal
652eb1
36
Base36
bx4xp
md5
ac5c96464007c0313e34629ab8b27789
sha1
f2ef9d86ef76659f64a6b0123f77f0fa2857cd92
sha256
c6e50fa3c1bce7e97d8db7fced2fc9a2127f05f943f5d5a258bc6c8749ee0e7c
sha512
f0bd483fd254a2b9f62c15f2c47f5f8e781ae38c432a3eb8de439721f5f3be4c0b1343fed8c6ed304674583938222dc708bebd799c01e074975a24641389d4c2
ripemd-160
aba9538c3b15daf73ae6f2a5327e88812d257968
Diameter
40043642
Circumference
125800811.53018
Area
1.259380665056E+15
Volume
3.362012566215E+22
Surface area
5.037522660224E+15
Circumference
125800811.53018
Perimeter
80087284
Area
400873316156041
Diagonal
28315130.801606
Surface area
2405239896936246
Volume
8.0262137797527E+21
Space diagonal
34678811.23205
Perimeter
60065463
Area
1.7358323774522E+14
Altitude
17339405.616025
Surface area
1.7358323774522E+14
Volume
9.4589836515267E+20
Height
9438376.9338688