20993945 is an odd 8-digits composite number following 20993944
and preceding 20993946 . In scientific notation, it is written as 2.0993945 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 14261184 positive integers (up to 20993945) that are relatively prime to 20993945.
20993945 has 8 divisors, whose sum is 21795840
The reverse of 20993945 is 54939902
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million nine hundred ninety-three thousand nine hundred forty-five
Scientific notation
2.0993945 × 10^7
Engineering notation
2.0993945 × 10^6
Prime Factorization
109 × 35 × 5503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20993945
Product of the distinct prime numbers
The prime factorization of 20993945 is 109 × 35 × 5503.
Since it has a total of 3 prime factors.
3 , 3 , 87 , 19 , 724 , 131 , 204 , 6483 , 19111 , 89869 , 924494 , 978293 , 4958523 , 607057 , 30834923 , 67820376 , 308114109 , 425320303 , 185866046 , 3904062217
n×2
41987890
n×3
62981835
n×4
83975780
n×5
104969725
n÷2
10496972.5
n÷3
6997981.6666667
n÷3
5248486.25
n÷5
4198789
n2
440745726663025
n3
9.2529915445486E+21
n4
1.9425679557172E+29
n5
4.0782164821089E+36
2 √n
4581.9149926641
3 √n
275.86589876238
4 √n
67.689844088047
5 √n
29.135254162047
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
-20993944
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 20993945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20993945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000101011110011001
3
Ternary
1110111121021112
4
Quaternary
1100011132121
5
Quinary
20333301240
6
Senary
2025550105
8
Octal
120053631
10
Decimal
20993945
12
Duodecimal
7045335
16
Hexadecimal
1405799
20
Vigesimal
6b44h5
36
Base36
chz15
md5
65b162f3990c4acb72763be42e64cf01
sha1
6ca5b034535f4d3917b194c0d6613a896329ad12
sha256
806d372fe2a661a989ee87f730264bc1ac4fe5d84432c0b6a132e223bbd5a3c7
sha512
1def03729376b741d94fd71643c8898306aba8ab0c556be58865d75e7d75b01859572cffd82d614e1add964c59888c621ac1429d5fb41a401fe7749b74bf188e
ripemd-160
94450517997bc46bb98baff3ff353932a5ce3f1a
Diameter
41987890
Circumference
131908846.76374
Area
1.3846435369857E+15
Volume
3.8758840346776E+22
Surface area
5.5385741479426E+15
Circumference
131908846.76374
Perimeter
83975780
Area
440745726663025
Diagonal
29689921.746715
Surface area
2644474359978150
Volume
9.2529915445486E+21
Space diagonal
36362579.391307
Perimeter
62981835
Area
1.9084849794981E+14
Altitude
18181289.695653
Surface area
1.9084849794981E+14
Volume
1.0904755112353E+21
Height
9896640.5822383