21131057 is an odd 8-digits composite number following 21131056
and preceding 21131058 . In scientific notation, it is written as 2.1131057 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 20449380 positive integers (up to 21131057) that are relatively prime to 21131057.
21131057 has 4 divisors, whose sum is 21812736
The reverse of 21131057 is 75013112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred thirty-one thousand fifty-seven
Scientific notation
2.1131057 × 10^7
Engineering notation
2.1131057 × 10^6
Prime Factorization
31 × 681647
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131057
Product of the distinct prime numbers
The prime factorization of 21131057 is 31 × 681647.
Since it has a total of 2 prime factors.
7 , 3 , 70 , 69 , 135 , 688 , 7123 , 3332 , 88621 , 60001 , 513489 , 414964 , 6014926 , 1560018 , 6748425 , 50495715 , 519741330 , 78389666 , 5903978263 , 4662283217
n×2
42262114
n×3
63393171
n×4
84524228
n×5
105655285
n÷2
10565528.5
n÷3
7043685.6666667
n÷3
5282764.25
n÷5
4226211.4
n2
446521569937249
n3
9.4354727460735E+21
n4
1.9938151241923E+29
n5
4.2131421036769E+36
2 √n
4596.8529452224
3 √n
276.46515850564
4 √n
67.800095466175
5 √n
29.173211750665
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
-21131056
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 21131057 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131057) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111100110001
3
Ternary
1110202120100202
4
Quaternary
1100212330301
5
Quinary
20402143212
6
Senary
2032524545
8
Octal
120467461
10
Decimal
21131057
12
Duodecimal
70b0755
16
Hexadecimal
1426f31
20
Vigesimal
6c17ch
36
Base36
ckwtt
md5
05feaf61a162c15e5f691d1516573531
sha1
27ac8a98cb16554baf44e925f2b344d1ffdce166
sha256
b057b00f5d91fc924a35c64970e79d8c3ae10ab18619426354748269a5c86689
sha512
b3b7194bf6290f66e4f1efefc93147938537f35ed1fd52945f074bcaea1d257194c0a5483b04b520bdab50fe9ac6937b02cb525c5457d54eaea6043f3bd811f7
ripemd-160
115a994eb3f7f72ac1b337cf3e4f5ded736b4159
Diameter
42262114
Circumference
132770346.86757
Area
1.4027888837842E+15
Volume
3.9523215816282E+22
Surface area
5.611155535137E+15
Circumference
132770346.86757
Perimeter
84524228
Area
446521569937249
Diagonal
29883827.396679
Surface area
2679129419623494
Volume
9.4354727460735E+21
Space diagonal
36600064.341634
Perimeter
63393171
Area
1.9334951145168E+14
Altitude
18300032.170817
Surface area
1.9334951145168E+14
Volume
1.1119811270749E+21
Height
9961275.798893