21031797 is an odd 8-digits composite number following 21031796
and preceding 21031798 . In scientific notation, it is written as 2.1031797 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13926800 positive integers (up to 21031797) that are relatively prime to 21031797.
21031797 has 8 divisors, whose sum is 28231200
The reverse of 21031797 is 79713012
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million thirty-one thousand seven hundred ninety-seven
Scientific notation
2.1031797 × 10^7
Engineering notation
2.1031797 × 10^6
Prime Factorization
3 × 149 × 47051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031797
Product of the distinct prime numbers
The prime factorization of 21031797 is 3 × 149 × 47051.
Since it has a total of 3 prime factors.
5 , 10 , 38 , 44 , 547 , 615 , 1857 , 7821 , 47442 , 64649 , 190 , 649622 , 7101647 , 938768 , 80277274 , 53035005 , 456882327 , 973046021 , 4994118267 , 3576119142
n×2
42063594
n×3
63095391
n×4
84127188
n×5
105158985
n÷2
10515898.5
n÷3
7010599
n÷3
5257949.25
n÷5
4206359.4
n2
442336485049209
n3
9.3031311592485E+21
n4
1.9566156600569E+29
n5
4.1151143369338E+36
2 √n
4586.043719809
3 √n
276.0315942618
4 √n
67.720334610876
5 √n
29.145752742875
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031796
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031797 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031797) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101101110101
3
Ternary
1110120112012110
4
Quaternary
1100032231311
5
Quinary
20341004142
6
Senary
2030441233
8
Octal
120165565
10
Decimal
21031797
12
Duodecimal
7063219
16
Hexadecimal
140eb75
20
Vigesimal
6b8j9h
36
Base36
cis8l
md5
70579017245a73346d0cb3be7477a42b
sha1
77c7ebe8142f6027d99cc34603f7e0dcbe07aec1
sha256
0485435407d6354d221366c05fc782a7546559794120e0dab412e3270718de1d
sha512
7a9266b52d50044cc037b34efa2eb33a97734ca67b923e99c978fe1ced43fcda265a27d96fcfca2a0e47b2865f875568c5078accc3f4bdb5851319481b25fc79
ripemd-160
caefd51b46640f230be380313ffbbdb38a03f2b4
Diameter
42063594
Circumference
132146677.89398
Area
1.3896410518453E+15
Volume
3.8968864673703E+22
Surface area
5.5585642073813E+15
Circumference
132146677.89398
Perimeter
84127188
Area
442336485049209
Diagonal
29743452.558478
Surface area
2654018910295254
Volume
9.3031311592485E+21
Space diagonal
36428140.978475
Perimeter
63095391
Area
1.9153731653667E+14
Altitude
18214070.489237
Surface area
1.9153731653667E+14
Volume
1.0963845214954E+21
Height
9914484.1861593