20990531 is an odd 8-digits composite number following 20990530
and preceding 20990532 . In scientific notation, it is written as 2.0990531 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20953200 positive integers (up to 20990531) that are relatively prime to 20990531.
20990531 has 4 divisors, whose sum is 21027864
The reverse of 20990531 is 13509902
Previous prime number is 571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred ninety thousand five hundred thirty-one
Scientific notation
2.0990531 × 10^7
Engineering notation
2.0990531 × 10^6
Prime Factorization
571 × 36761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20990531
Product of the distinct prime numbers
The prime factorization of 20990531 is 571 × 36761.
Since it has a total of 2 prime factors.
3 , 8 , 13 , 86 , 256 , 975 , 3336 , 6097 , 86034 , 18273 , 531218 , 84048 , 1284163 , 4504598 , 33933863 , 63376274 , 163154377 , 402696903 , 5425768623 , 1846213872
n×2
41981062
n×3
62971593
n×4
83962124
n×5
104952655
n÷2
10495265.5
n÷3
6996843.6666667
n÷3
5247632.75
n÷5
4198106.2
n2
440602391661961
n3
9.2484781608545E+21
n4
1.9413046753824E+29
n5
4.0749015969059E+36
2 √n
4581.5424258649
3 √n
275.85094433569
4 √n
67.687092018086
5 √n
29.134306515205
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
-20990530
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 20990531 can be divided by 4 positive divisors.
The sum of these divisors (counting 20990531) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100101001000011
3
Ternary
1110111102121002
4
Quaternary
1100010221003
5
Quinary
20333144111
6
Senary
2025522215
8
Octal
120045103
10
Decimal
20990531
12
Duodecimal
704336b
16
Hexadecimal
1404a43
20
Vigesimal
6b3g6b
36
Base36
chweb
md5
07750177317df3e15369eb06135ed183
sha1
026fc7fc70ccfe889b691149a2da4a2bcf0540f1
sha256
5932821a341ba431f664fa398356c906eb132133056b50bdbb27f353af4577db
sha512
8246bb7c545aa154f2715576ff3423d7824348619cf21e38b5fdf178af19f3185d0440bdb904e55605bf23d49e78aa110c4dcf383e0dc53d6692c6850131fe6c
ripemd-160
054028a33550fdb40a04b6c8e0124bc92d860284
Diameter
41981062
Circumference
131887395.9691
Area
1.3841932367993E+15
Volume
3.8739934729368E+22
Surface area
5.5367729471972E+15
Circumference
131887395.9691
Perimeter
83962124
Area
440602391661961
Diagonal
29685093.621613
Surface area
2643614349971766
Volume
9.2484781608545E+21
Space diagonal
36356666.16985
Perimeter
62971593
Area
1.9078643207372E+14
Altitude
18178333.084925
Surface area
1.9078643207372E+14
Volume
1.089943603866E+21
Height
9895031.2072043