20993921 is an odd 8-digits composite number following 20993920
and preceding 20993922 . In scientific notation, it is written as 2.0993921 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 19378992 positive integers (up to 20993921) that are relatively prime to 20993921.
20993921 has 4 divisors, whose sum is 22608852
The reverse of 20993921 is 12939902
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred ninety-three thousand nine hundred twenty-one
Scientific notation
2.0993921 × 10^7
Engineering notation
2.0993921 × 10^6
Prime Factorization
13 × 1614917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20993921
Product of the distinct prime numbers
The prime factorization of 20993921 is 13 × 1614917.
Since it has a total of 2 prime factors.
4 , 7 , 29 , 49 , 742 , 265 , 2323 , 4192 , 24277 , 5877 , 637962 , 362935 , 7573703 , 2693519 , 81435139 , 33307033 , 166236241 , 637341826 , 7115658977 , 6565555544
n×2
41987842
n×3
62981763
n×4
83975684
n×5
104969605
n÷2
10496960.5
n÷3
6997973.6666667
n÷3
5248480.25
n÷5
4198784.2
n2
440744718954241
n3
9.2529598108925E+21
n4
1.9425590728605E+29
n5
4.0781931713467E+36
2 √n
4581.9123736711
3 √n
275.86579364026
4 √n
67.689824742505
5 √n
29.135247500637
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
-20993920
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 20993921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20993921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101011110000001
3
Ternary
1110111121020122
4
Quaternary
1100011132001
5
Quinary
20333301141
6
Senary
2025550025
8
Octal
120053601
10
Decimal
20993921
12
Duodecimal
7045315
16
Hexadecimal
1405781
20
Vigesimal
6b44g1
36
Base36
chz0h
md5
a500000c02bad516911983379211ceb1
sha1
ebb0cdf1ca4429d885c6ee205348b96b726abb78
sha256
e19faff459a8c755a5bcd18d0ff2aa15940e179599d6f1bd88be5e94255f7b63
sha512
1c57801aedc01a686ad33664148ef3af0799147e2c7e97110f9006f6ba5e4a52f071654779d6d1749967dc6d7cadb4735becfb92cee2a2bdad6cce0538da5384
ripemd-160
1748a8255f9554adc677168a42f229c2a89d16b8
Diameter
41987842
Circumference
131908695.96729
Area
1.3846403711751E+15
Volume
3.8758707421149E+22
Surface area
5.5385614847006E+15
Circumference
131908695.96729
Perimeter
83975684
Area
440744718954241
Diagonal
29689887.805589
Surface area
2644468313725446
Volume
9.2529598108925E+21
Space diagonal
36362537.822087
Perimeter
62981763
Area
1.908480615991E+14
Altitude
18181268.911044
Surface area
1.908480615991E+14
Volume
1.0904717713881E+21
Height
9896629.2685298