20206721 is an odd 8-digits prime number following 20206720
and preceding 20206722 . In scientific notation, it is written as 2.0206721 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 20206720 positive integers (up to 20206721) that are relatively prime to 20206721.
20206721 has 2 divisors, whose sum is 20206722
The reverse of 20206721 is 12760202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million two hundred six thousand seven hundred twenty-one
Scientific notation
2.0206721 × 10^7
Engineering notation
2.0206721 × 10^6
Prime Factorization
20206721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20206721
Product of the distinct prime numbers
The prime factorization of 20206721 is 20206721.
Since it has a total of 1 prime factors.
1 , 6 , 56 , 27 , 323 , 226 , 3954 , 6497 , 35413 , 51653 , 917621 , 415023 , 7128109 , 6834220 , 72546255 , 60534918 , 24291784 , 138727544 , 9617229917 , 5174980069
n×2
40413442
n×3
60620163
n×4
80826884
n×5
101033605
n÷2
10103360.5
n÷3
6735573.6666667
n÷3
5051680.25
n÷5
4041344.2
n2
408311573571841
n3
8.2506380482372E+21
n4
1.6671834111271E+29
n5
3.3688310044474E+36
2 √n
4495.1886501014
3 √n
272.37376977655
4 √n
67.046168049348
5 √n
28.913400303099
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20206722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10103361
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4495.1887613314
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999901023
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20206721 can be divided by 2 positive divisors.
The sum of these divisors (counting 20206721) is 20206722, the average is 10103361.
Base
System
Value
2
Binary
1001101000101010010000001
3
Ternary
1102000121102002
4
Quaternary
1031011102001
5
Quinary
20133103341
6
Senary
2001033345
8
Octal
115052201
10
Decimal
20206721
12
Duodecimal
6925855
16
Hexadecimal
1345481
20
Vigesimal
665gg1
36
Base36
c13lt
md5
1d0188f251438ae9544895a96cba9885
sha1
0b4be5dd6d9da18210225697952b8dd0f905110b
sha256
d26ee9ced383dc5f9cb96284ea812c33a5a4b14ac9f5b59a499280ceb26b3df2
sha512
0c02b00b5153924786585a5b2a9fbc488137b86e09908396d7c65418ce803019e841cd3b72cf185131d7b6f0bbaa20731f9994935c456f063590d0a2c482339a
ripemd-160
35c28c5e81a5f511cf517ea06f36d03ee2cab22f
Diameter
40413442
Circumference
126962572.49348
Area
1.282748639909E+15
Volume
3.4560191839694E+22
Surface area
5.1309945596359E+15
Circumference
126962572.49348
Perimeter
80826884
Area
408311573571841
Diagonal
28576618.889289
Surface area
2449869441431046
Volume
8.2506380482372E+21
Space diagonal
34999067.426369
Perimeter
60620163
Area
1.7680409768621E+14
Altitude
17499533.713184
Surface area
1.7680409768621E+14
Volume
9.7234701883737E+20
Height
9525539.6297631