20781330 is an even 8-digits composite number following 20781329
and preceding 20781331 . In scientific notation, it is written as 2.0781330 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 5541680 positive integers (up to 20781330) that are relatively prime to 20781330.
20781330 has 16 divisors, whose sum is 49875264
The reverse of 20781330 is 03318702
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million seven hundred eighty-one thousand three hundred thirty
Scientific notation
2.0781330 × 10^7
Engineering notation
2.0781330 × 10^6
Prime Factorization
2 × 3 × 5 × 692711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20781330
Product of the distinct prime numbers
The prime factorization of 20781330 is 2 × 3 × 5 × 692711.
Since it has a total of 4 prime factors.
10 , 8 , 31 , 34 , 956 , 73 , 901 , 7063 , 63653 , 81877 , 173896 , 78253 , 8797930 , 5476589 , 62000617 , 53428433 , 979481134 , 230810406 , 5474112411 , 4966166708
n×2
41562660
n×3
62343990
n×4
83125320
n×5
103906650
n÷2
10390665
n÷3
6927110
n÷3
5195332.5
n÷5
4156266
n2
431863676568900
n3
8.9747015777916E+21
n4
1.8650623513961E+29
n5
3.8758476194938E+36
2 √n
4558.6544067301
3 √n
274.93146501492
4 √n
67.517808071131
5 √n
29.076000507813
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 692711 , 1385422 , 2078133 , 3463555 , 4156266 , 6927110 , 10390665 , 20781330
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
-20781329
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 20781330 can be divided by 16 positive divisors.
The sum of these divisors (counting 20781330) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010001100100010010
3
Ternary
1110002210121220
4
Quaternary
1033101210102
5
Quinary
20310000310
6
Senary
2021225510
8
Octal
117214422
10
Decimal
20781330
12
Duodecimal
6b62296
16
Hexadecimal
13d1912
20
Vigesimal
69hd6a
36
Base36
cdez6
md5
9789bb385eada32a3052084655247e90
sha1
2555efacf4feff9a12f27d3c9a4dbfd706332681
sha256
ad54fb8e6ed3f0d93934d52899f5a9196a4e85ba980dbbf83e81ea14c27d717a
sha512
fca90c7168027de35e33178d6ed9a20f6648d21574016e87f7abb38cf037dce1ea72b886000789bb4024d38342c6f8ec7536c62c7bb88212ca6151cf1b7023be
ripemd-160
e4c986773beeb753f6a5b243d1ea7ff7e0c7298a
Diameter
41562660
Circumference
130572947.31965
Area
1.3567397536611E+15
Volume
3.7593142059934E+22
Surface area
5.4269590146445E+15
Circumference
130572947.31965
Perimeter
83125320
Area
431863676568900
Diagonal
29389238.730151
Surface area
2591182059413400
Volume
8.9747015777916E+21
Space diagonal
35994319.408855
Perimeter
62343990
Area
1.8700245744021E+14
Altitude
17997159.704428
Surface area
1.8700245744021E+14
Volume
1.0576787241303E+21
Height
9796412.9100503