20731021 is an odd 8-digits composite number following 20731020
and preceding 20731022 . In scientific notation, it is written as 2.0731021 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 20720700 positive integers (up to 20731021) that are relatively prime to 20731021.
20731021 has 4 divisors, whose sum is 20741344
The reverse of 20731021 is 12013702
Previous prime number is 7591
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million seven hundred thirty-one thousand twenty-one
Scientific notation
2.0731021 × 10^7
Engineering notation
2.0731021 × 10^6
Prime Factorization
7591 × 2731
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20731021
Product of the distinct prime numbers
The prime factorization of 20731021 is 7591 × 2731.
Since it has a total of 2 prime factors.
7 , 5 , 5 , 96 , 706 , 415 , 2242 , 4551 , 95267 , 28696 , 560675 , 128722 , 5086695 , 7959007 , 31923405 , 24948449 , 755725430 , 575433611 , 8317285959 , 6924995147
n×2
41462042
n×3
62193063
n×4
82924084
n×5
103655105
n÷2
10365510.5
n÷3
6910340.3333333
n÷3
5182755.25
n÷5
4146204.2
n2
429775231702441
n3
8.9096793537032E+21
n4
1.8470674978489E+29
n5
3.8291595086322E+36
2 √n
4553.1330971102
3 √n
274.70942751661
4 √n
67.476907880475
5 √n
29.061908983759
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
-20731020
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 20731021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20731021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000101010010001101
3
Ternary
1110000020121121
4
Quaternary
1033011102031
5
Quinary
20301343041
6
Senary
2020200541
8
Octal
117052215
10
Decimal
20731021
12
Duodecimal
6b39151
16
Hexadecimal
13c548d
20
Vigesimal
69b7b1
36
Base36
ccc5p
md5
64feb8557b0d98ffa3708aa3ebdab795
sha1
406fe088d227d16f1f5620b1811fc7686dfe2f2f
sha256
b692b2172adc54dd270f3f23044cbdd2b8597a2d7ca62dcca888469209a28c4d
sha512
f4913c77bf9626b8d2ae4e123d70ad07bf1bce9f7ace6c0bdb033b28fe2b739cc84d6eba84b199d079eb99e64fd1fb2630911997ecc4774a266834a20a5daee7
ripemd-160
f3be337196a8c83e69a42d174b025129eb353f1d
Diameter
41462042
Circumference
130256846.55003
Area
1.3501787106112E+15
Volume
3.7320777604579E+22
Surface area
5.400714842445E+15
Circumference
130256846.55003
Perimeter
82924084
Area
429775231702441
Diagonal
29318091.060041
Surface area
2578651390214646
Volume
8.9096793537032E+21
Space diagonal
35907181.664777
Perimeter
62193063
Area
1.8609813428583E+14
Altitude
17953590.832389
Surface area
1.8609813428583E+14
Volume
1.0500157815335E+21
Height
9772697.0200138