20990505 is an odd 8-digits composite number following 20990504
and preceding 20990506 . In scientific notation, it is written as 2.0990505 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11194928 positive integers (up to 20990505) that are relatively prime to 20990505.
20990505 has 8 divisors, whose sum is 33584832
The reverse of 20990505 is 50509902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred ninety thousand five hundred five
Scientific notation
2.0990505 × 10^7
Engineering notation
2.0990505 × 10^6
Prime Factorization
3 × 5 × 1399367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20990505
Product of the distinct prime numbers
The prime factorization of 20990505 is 3 × 5 × 1399367.
Since it has a total of 3 prime factors.
7 , 5 , 48 , 28 , 445 , 470 , 8789 , 7347 , 29607 , 56968 , 776831 , 630401 , 4547701 , 8254857 , 52518461 , 37497313 , 54250068 , 775733607 , 3969949061 , 3475201763
n×2
41981010
n×3
62971515
n×4
83962020
n×5
104952525
n÷2
10495252.5
n÷3
6996835
n÷3
5247626.25
n÷5
4198101
n2
440601300155025
n3
9.2484437939106E+21
n4
1.941295056983E+29
n5
4.0748763600077E+36
2 √n
4581.5395883917
3 √n
275.85083044104
4 √n
67.687071057859
5 √n
29.134299297738
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
-20990504
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 20990505 can be divided by 8 positive divisors.
The sum of these divisors (counting 20990505) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100101000101001
3
Ternary
1110111102120010
4
Quaternary
1100010220221
5
Quinary
20333144010
6
Senary
2025522133
8
Octal
120045051
10
Decimal
20990505
12
Duodecimal
7043349
16
Hexadecimal
1404a29
20
Vigesimal
6b3g55
36
Base36
chwdl
md5
73ab432bec7db87d26643f4d1c0406c7
sha1
7adddaf981cd550b60c70da129d2c35ef49cf7ce
sha256
a51690bb23dc2a4f112569ee3d7687c9a0a635b1b5db899556fb98a1064233c7
sha512
032f2fd6578cba1f45972a2fb768c78431039d057264fcc64d2386727f1a034830b29d55abd83408fdae2b5a21d5373c02eb8a9b5543042acc076f8d3e8be6c9
ripemd-160
a00c0c5e34fdb888a496507e5bc1e0cec487ea53
Diameter
41981010
Circumference
131887232.60628
Area
1.3841898077291E+15
Volume
3.873979077345E+22
Surface area
5.5367592309166E+15
Circumference
131887232.60628
Perimeter
83962020
Area
440601300155025
Diagonal
29685056.85206
Surface area
2643607800930150
Volume
9.2484437939106E+21
Space diagonal
36356621.136529
Perimeter
62971515
Area
1.9078595943735E+14
Altitude
18178310.568264
Surface area
1.9078595943735E+14
Volume
1.0899395536828E+21
Height
9895018.9506868