21031271 is an odd 8-digits composite number following 21031270
and preceding 21031272 . In scientific notation, it is written as 2.1031271 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19924344 positive integers (up to 21031271) that are relatively prime to 21031271.
21031271 has 4 divisors, whose sum is 22138200
The reverse of 21031271 is 17213012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million thirty-one thousand two hundred seventy-one
Scientific notation
2.1031271 × 10^7
Engineering notation
2.1031271 × 10^6
Prime Factorization
19 × 1106909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031271
Product of the distinct prime numbers
The prime factorization of 21031271 is 19 × 1106909.
Since it has a total of 2 prime factors.
10 , 4 , 78 , 17 , 976 , 262 , 8189 , 2219 , 67989 , 17087 , 699772 , 566445 , 6088948 , 4736757 , 36669481 , 77983661 , 824397605 , 704852908 , 7629958234 , 1578693506
n×2
42062542
n×3
63093813
n×4
84125084
n×5
105156355
n÷2
10515635.5
n÷3
7010423.6666667
n÷3
5257817.75
n÷5
4206254.2
n2
442314359875441
n3
9.3024331697319E+21
n4
1.9564199295202E+29
n5
4.114599772754E+36
2 √n
4585.9863715454
3 √n
276.02929308216
4 √n
67.719911189733
5 √n
29.145606955814
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
-21031270
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 21031271 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031271) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110100101100111
3
Ternary
1110120111110222
4
Quaternary
1100032211213
5
Quinary
20341000041
6
Senary
2030434555
8
Octal
120164547
10
Decimal
21031271
12
Duodecimal
7062a5b
16
Hexadecimal
140e967
20
Vigesimal
6b8i3b
36
Base36
cirtz
md5
e13f3010cd886688a8cd5c254353b7f6
sha1
e862c0fb4605877dea5410a65dd96ef834bab1ff
sha256
7634ae6136af2a19e4f3a4517e8ea670116bde64ec13f3346d919d8ef1d570d0
sha512
95b56ec49da8c01d834ddf05b49acb74179fa4b33489918a62bfa90cb0f145ed5c0773a9fbb37b5cdb7054173c59ceefa2d152e0a97e9b12a39a79618a15c63d
ripemd-160
cc47319061c3c962eccebdf6182704aac401b752
Diameter
42062542
Circumference
132143372.93851
Area
1.389571543562E+15
Volume
3.8965940942053E+22
Surface area
5.5582861742478E+15
Circumference
132143372.93851
Perimeter
84125084
Area
442314359875441
Diagonal
29742708.682144
Surface area
2653886159252646
Volume
9.3024331697319E+21
Space diagonal
36427229.91975
Perimeter
63093813
Area
1.9152773605539E+14
Altitude
18213614.959875
Surface area
1.9152773605539E+14
Volume
1.096302262642E+21
Height
9914236.2273813