20993791 is an odd 8-digits composite number following 20993790
and preceding 20993792 . In scientific notation, it is written as 2.0993791 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 16531200 positive integers (up to 20993791) that are relatively prime to 20993791.
20993791 has 16 divisors, whose sum is 25962048
The reverse of 20993791 is 19739902
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred ninety-three thousand seven hundred ninety-one
Scientific notation
2.0993791 × 10^7
Engineering notation
2.0993791 × 10^6
Prime Factorization
7 × 13 × 281 × 821
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20993791
Product of the distinct prime numbers
The prime factorization of 20993791 is 7 × 13 × 281 × 821.
Since it has a total of 4 prime factors.
5 , 3 , 41 , 9 , 654 , 167 , 3795 , 7906 , 35159 , 51801 , 767988 , 4884 , 1336388 , 3095703 , 75153083 , 50763573 , 213331029 , 848945416 , 7219381256 , 5749041019
n×2
41987582
n×3
62981373
n×4
83975164
n×5
104968955
n÷2
10496895.5
n÷3
6997930.3333333
n÷3
5248447.75
n÷5
4198758.2
n2
440739260551681
n3
9.2527879215165E+21
n4
1.9425109579164E+29
n5
4.0780669065707E+36
2 √n
4581.8981874328
3 √n
275.86522422738
4 √n
67.689719953866
5 √n
29.135211417891
1 , 7 , 13 , 91 , 281 , 821 , 1967 , 3653 , 5747 , 10673 , 25571 , 74711 , 230701 , 1614907 , 2999113 , 20993791
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
-20993790
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 20993791 can be divided by 16 positive divisors.
The sum of these divisors (counting 20993791) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101011011111111
3
Ternary
1110111121001211
4
Quaternary
1100011123333
5
Quinary
20333300131
6
Senary
2025545251
8
Octal
120053377
10
Decimal
20993791
12
Duodecimal
7045227
16
Hexadecimal
14056ff
20
Vigesimal
6b449b
36
Base36
chywv
md5
a3ac9f8b79c6dd1e422f59db9b657331
sha1
bf33d93c44a444733af51f2c054ba11dcdde1fc0
sha256
c23d2d5698581637c5fd66d8ef89eb22e2bb026e4c54cf0abcd2452d8367afd8
sha512
91df6d7a6384bbf47354078d31bad56b146fe348ca47709d66f885ab51c3d9cdda5459a021021f6a44a4a251d4610193e49e18e18ab5f86f4ef878f8d21603e1
ripemd-160
0617af62c7e1f2af42e9f3a4dbc89efca65c06ce
Diameter
41987582
Circumference
131907879.1532
Area
1.3846232230978E+15
Volume
3.8757987412614E+22
Surface area
5.538492892391E+15
Circumference
131907879.1532
Perimeter
83975164
Area
440739260551681
Diagonal
29689703.957826
Surface area
2644435563310086
Volume
9.2527879215165E+21
Space diagonal
36362312.655482
Perimeter
62981373
Area
1.9084569804146E+14
Altitude
18181156.327741
Surface area
1.9084569804146E+14
Volume
1.0904515140309E+21
Height
9896567.9859421