20991617 is an odd 8-digits composite number following 20991616
and preceding 20991618 . In scientific notation, it is written as 2.0991617 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 18374400 positive integers (up to 20991617) that are relatively prime to 20991617.
20991617 has 16 divisors, whose sum is 23836032
The reverse of 20991617 is 71619902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred ninety-one thousand six hundred seventeen
Scientific notation
2.0991617 × 10^7
Engineering notation
2.0991617 × 10^6
Prime Factorization
37 × 23 × 17 × 1451
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991617
Product of the distinct prime numbers
The prime factorization of 20991617 is 37 × 23 × 17 × 1451.
Since it has a total of 4 prime factors.
5 , 3 , 75 , 47 , 600 , 58 , 2319 , 219 , 3016 , 35177 , 153760 , 817456 , 8007672 , 365361 , 19410538 , 10050370 , 854307762 , 301001125 , 8480795879 , 5095642717
n×2
41983234
n×3
62974851
n×4
83966468
n×5
104958085
n÷2
10495808.5
n÷3
6997205.6666667
n÷3
5247904.25
n÷5
4198323.4
n2
440647984274689
n3
9.2499137177163E+21
n4
1.9417064604535E+29
n5
4.0759558344265E+36
2 √n
4581.6609433698
3 √n
275.85570154358
4 √n
67.687967493269
5 √n
29.13460797687
1 , 17 , 23 , 37 , 391 , 629 , 851 , 1451 , 14467 , 24667 , 33373 , 53687 , 567341 , 912679 , 1234801 , 20991617
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991616
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991617 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991617) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111010000001
3
Ternary
1110111111002022
4
Quaternary
1100010322001
5
Quinary
20333212432
6
Senary
2025531225
8
Octal
120047201
10
Decimal
20991617
12
Duodecimal
7043b15
16
Hexadecimal
1404e81
20
Vigesimal
6b3j0h
36
Base36
chx8h
md5
980fe828e9e441a687fbd95eb826ee14
sha1
35209fa945374909c0fc4a030fe93174d4dd80f6
sha256
384e7d0fb6a9e50b4f7f9caf7f7639916fb4966d8762ed2fb8c6bea70de07fa2
sha512
b2f554e10cf044dbe60083b7cd57375fd2487cc0e37118555193545e733ef0acaebdbce7fccc2499ae1f24dbaefc3a00007850d0d781b075d9094cc674177d9a
ripemd-160
6c0851957eabfc9f45976ab7af43f98cde66cbad
Diameter
41983234
Circumference
131894219.50834
Area
1.3843364702165E+15
Volume
3.8745947975889E+22
Surface area
5.5373458808661E+15
Circumference
131894219.50834
Perimeter
83966468
Area
440647984274689
Diagonal
29686629.457542
Surface area
2643887905648134
Volume
9.2499137177163E+21
Space diagonal
36358547.177027
Perimeter
62974851
Area
1.9080617425414E+14
Altitude
18179273.588513
Surface area
1.9080617425414E+14
Volume
1.0901127858646E+21
Height
9895543.1525139