21031571 is an odd 8-digits composite number following 21031570
and preceding 21031572 . In scientific notation, it is written as 2.1031571 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19119600 positive integers (up to 21031571) that are relatively prime to 21031571.
21031571 has 4 divisors, whose sum is 22943544
The reverse of 21031571 is 17513012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand five hundred seventy-one
Scientific notation
2.1031571 × 10^7
Engineering notation
2.1031571 × 10^6
Prime Factorization
11 × 1911961
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031571
Product of the distinct prime numbers
The prime factorization of 21031571 is 11 × 1911961.
Since it has a total of 2 prime factors.
9 , 4 , 98 , 59 , 310 , 183 , 472 , 4129 , 61992 , 66829 , 331221 , 323863 , 9294915 , 6156282 , 56081232 , 58256107 , 692722231 , 113777196 , 1906263698 , 6605955192
n×2
42063142
n×3
63094713
n×4
84126284
n×5
105157855
n÷2
10515785.5
n÷3
7010523.6666667
n÷3
5257892.75
n÷5
4206314.2
n2
442326978728041
n3
9.3028312583343E+21
n4
1.9565315611068E+29
n5
4.1148932441158E+36
2 √n
4586.0190797684
3 √n
276.03060554673
4 √n
67.720152685655
5 √n
29.145690104685
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
-21031570
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 21031571 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031571) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101010010011
3
Ternary
1110120111220002
4
Quaternary
1100032222103
5
Quinary
20341002241
6
Senary
2030440215
8
Octal
120165223
10
Decimal
21031571
12
Duodecimal
706306b
16
Hexadecimal
140ea93
20
Vigesimal
6b8iib
36
Base36
cis2b
md5
bee7eee92717131a3c390e0a335a3946
sha1
350926430bdee496963a84f3a3bf3e0bd3dc226f
sha256
09febb12a1e4398500dd71da6e432aeb5a310073f0b877fb39c724fc1043e7b3
sha512
842d5264be363c10636c3b7ebcb5dbc4211170b6d4fc70022617fd8574b7197677989fbe83952fe6d6860c94c1f8004d79b16c2e0b066d142fd7a26cd3ce4b77
ripemd-160
76ce24e5ea78682f806c95d4aa4911559d521665
Diameter
42063142
Circumference
132145257.8941
Area
1.3896111868566E+15
Volume
3.8967608451691E+22
Surface area
5.5584447474263E+15
Circumference
132145257.8941
Perimeter
84126284
Area
442326978728041
Diagonal
29743132.946213
Surface area
2653961872368246
Volume
9.3028312583343E+21
Space diagonal
36427749.534992
Perimeter
63094713
Area
1.9153320017885E+14
Altitude
18213874.767496
Surface area
1.9153320017885E+14
Volume
1.0963491778337E+21
Height
9914377.6487376