20991695 is an odd 8-digits composite number following 20991694
and preceding 20991696 . In scientific notation, it is written as 2.0991695 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 16793352 positive integers (up to 20991695) that are relatively prime to 20991695.
20991695 has 4 divisors, whose sum is 25190040
The reverse of 20991695 is 59619902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million nine hundred ninety-one thousand six hundred ninety-five
Scientific notation
2.0991695 × 10^7
Engineering notation
2.0991695 × 10^6
Prime Factorization
5 × 4198339
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20991695
Product of the distinct prime numbers
The prime factorization of 20991695 is 5 × 4198339.
Since it has a total of 2 prime factors.
1 , 6 , 75 , 4 , 518 , 462 , 1697 , 9359 , 89922 , 81740 , 89562 , 288897 , 4382265 , 4686054 , 62449247 , 66392352 , 583956595 , 696164262 , 2770792526 , 5288205761
n×2
41983390
n×3
62975085
n×4
83966780
n×5
104958475
n÷2
10495847.5
n÷3
6997231.6666667
n÷3
5247923.75
n÷5
4198339
n2
440651258973025
n3
9.2500168297278E+21
n4
1.9417353203451E+29
n5
4.0760315615412E+36
2 √n
4581.6694555587
3 √n
275.85604321518
4 √n
67.688030371394
5 √n
29.134629628332
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
-20991694
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 20991695 can be divided by 4 positive divisors.
The sum of these divisors (counting 20991695) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100111011001111
3
Ternary
1110111111012012
4
Quaternary
1100010323033
5
Quinary
20333213240
6
Senary
2025531435
8
Octal
120047317
10
Decimal
20991695
12
Duodecimal
7043b7b
16
Hexadecimal
1404ecf
20
Vigesimal
6b3j4f
36
Base36
chxan
md5
1bd20c7675851786382727cf110b16e8
sha1
cb9472896838b207dfc2684a6cfe22855fd12c06
sha256
eb009ee67e9d0db02ea73274b47a4f6fb85e3f14f0cbd31464fd2887b7128092
sha512
93d548ab247760de8e74d2662006e8823121e4ad83bf75b4f4aab26d3c60fe8933916be9f95b455085cfa3f800309b5d6e0e40bd588febd2214caf3f43502a5f
ripemd-160
238a718abebc7e360d7900aafaf1a866d03a0d81
Diameter
41983390
Circumference
131894709.5968
Area
1.3843467579847E+15
Volume
3.8746379890473E+22
Surface area
5.537387031939E+15
Circumference
131894709.5968
Perimeter
83966780
Area
440651258973025
Diagonal
29686739.766199
Surface area
2643907553838150
Volume
9.2500168297278E+21
Space diagonal
36358682.27699
Perimeter
62975085
Area
1.9080759224012E+14
Altitude
18179341.138495
Surface area
1.9080759224012E+14
Volume
1.0901249377317E+21
Height
9895579.9220665