21031814 is an even 8-digits composite number following 21031813
and preceding 21031815 . In scientific notation, it is written as 2.1031814 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 10515906 positive integers (up to 21031814) that are relatively prime to 21031814.
21031814 has 4 divisors, whose sum is 31547724
The reverse of 21031814 is 41813012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand eight hundred fourteen
Scientific notation
2.1031814 × 10^7
Engineering notation
2.1031814 × 10^6
Prime Factorization
2 × 10515907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031814
Product of the distinct prime numbers
The prime factorization of 21031814 is 2 × 10515907.
Since it has a total of 2 prime factors.
6 , 2 , 52 , 10 , 75 , 222 , 8084 , 5345 , 71661 , 7609 , 939677 , 186199 , 979769 , 4107718 , 84893943 , 84423013 , 76830881 , 673443713 , 1637019097 , 5074097948
n×2
42063628
n×3
63095442
n×4
84127256
n×5
105159070
n÷2
10515907
n÷3
7010604.6666667
n÷3
5257953.5
n÷5
4206362.8
n2
442337200130596
n3
9.3031537184275E+21
n4
1.9566219861937E+29
n5
4.1151309681938E+36
2 √n
4586.0455732581
3 √n
276.03166863389
4 √n
67.720348295458
5 √n
29.145757454575
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
-21031813
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 21031814 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031814) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110000110
3
Ternary
1110120112020002
4
Quaternary
1100032232012
5
Quinary
20341004224
6
Senary
2030441302
8
Octal
120165606
10
Decimal
21031814
12
Duodecimal
7063232
16
Hexadecimal
140eb86
20
Vigesimal
6b8jae
36
Base36
cis92
md5
74144ce8c643499905c1dae966865c6b
sha1
86dd9a3f75231f8146bb8ba6c4decdd96714f234
sha256
9884567c43e7544c7e2b2df66cf2d1b8343d1c9b0e606b12a2df1ecc1e50eff3
sha512
7e88d549f3c2e0fa645cfb29d655667a2ed59a8f3e68eb07e8277f87afee0e15ff2931eddb0c1391c88f4f324957e3e47489d787fd11c591a66a63802e8ca47c
ripemd-160
33113f2d544a9133ca7c08ca5ad98e2594ef91ea
Diameter
42063628
Circumference
132146784.70813
Area
1.3896432983398E+15
Volume
3.8968959169371E+22
Surface area
5.558573193359E+15
Circumference
132146784.70813
Perimeter
84127256
Area
442337200130596
Diagonal
29743476.600108
Surface area
2654023200783576
Volume
9.3031537184275E+21
Space diagonal
36428170.423338
Perimeter
63095442
Area
1.9153762617599E+14
Altitude
18214085.211669
Surface area
1.9153762617599E+14
Volume
1.0963871801202E+21
Height
9914492.2000361