20993805 is an odd 8-digits composite number following 20993804
and preceding 20993806 . In scientific notation, it is written as 2.0993805 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 9596160 positive integers (up to 20993805) that are relatively prime to 20993805.
20993805 has 16 divisors, whose sum is 28566000
The reverse of 20993805 is 50839902
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred ninety-three thousand eight hundred five
Scientific notation
2.0993805 × 10^7
Engineering notation
2.0993805 × 10^6
Prime Factorization
5 × 9 × 49 × 9521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20993805
Product of the distinct prime numbers
The prime factorization of 20993805 is 5 × 9 × 49 × 9521.
Since it has a total of 4 prime factors.
4 , 10 , 41 , 70 , 4 , 919 , 7906 , 6784 , 41562 , 60353 , 808200 , 741121 , 9449902 , 5689264 , 61090886 , 88334869 , 714300728 , 445974880 , 8641153504 , 6859676788
n×2
41987610
n×3
62981415
n×4
83975220
n×5
104969025
n÷2
10496902.5
n÷3
6997935
n÷3
5248451.25
n÷5
4198761
n2
440739848378025
n3
9.2528064325778E+21
n4
1.9425161394828E+29
n5
4.0780805041656E+36
2 √n
4581.8997151836
3 √n
275.86528554888
4 √n
67.68973123882
5 √n
29.135215303734
1 , 5 , 9 , 45 , 49 , 245 , 441 , 2205 , 9521 , 47605 , 85689 , 428445 , 466529 , 2332645 , 4198761 , 20993805
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
-20993804
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 20993805 can be divided by 16 positive divisors.
The sum of these divisors (counting 20993805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101011100001101
3
Ternary
1110111121002100
4
Quaternary
1100011130031
5
Quinary
20333300210
6
Senary
2025545313
8
Octal
120053415
10
Decimal
20993805
12
Duodecimal
7045239
16
Hexadecimal
140570d
20
Vigesimal
6b44a5
36
Base36
chyx9
md5
04ccf8561ea9d4533f15660d0ec2c0a7
sha1
3f981d92fdb70a8349f9aa521fabd8aff08fbc11
sha256
b08ec81ca00c53f9bd558a0c671ef5b7cc62a1cedd7c249e4a6c2de99ea14e65
sha512
6d2920bf69ec356b852c04653b71ef385143644f7bae2b5ca5f9db6ea66a759c2b11ed0d25abf225a8a7ed58f5911ed3372871a6b46af62739277498edaf18d3
ripemd-160
263211f5219c863ec84cc7654db2544ce6ebf381
Diameter
41987610
Circumference
131907967.11779
Area
1.3846250698087E+15
Volume
3.8758064951566E+22
Surface area
5.5385002792347E+15
Circumference
131907967.11779
Perimeter
83975220
Area
440739848378025
Diagonal
29689723.756816
Surface area
2644439090268150
Volume
9.2528064325778E+21
Space diagonal
36362336.904194
Perimeter
62981415
Area
1.9084595257774E+14
Altitude
18181168.452097
Surface area
1.9084595257774E+14
Volume
1.0904536955804E+21
Height
9896574.5856054