20783979 is an odd 8-digits composite number following 20783978
and preceding 20783980 . In scientific notation, it is written as 2.0783979 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 13040640 positive integers (up to 20783979) that are relatively prime to 20783979.
20783979 has 16 divisors, whose sum is 32603040
The reverse of 20783979 is 97938702
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million seven hundred eighty-three thousand nine hundred seventy-nine
Scientific notation
2.0783979 × 10^7
Engineering notation
2.0783979 × 10^6
Prime Factorization
9 × 17 × 3 × 45281
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20783979
Product of the distinct prime numbers
The prime factorization of 20783979 is 9 × 17 × 3 × 45281.
Since it has a total of 4 prime factors.
2 , 7 , 21 , 4 , 607 , 196 , 7366 , 7298 , 80536 , 78585 , 584493 , 106565 , 7228415 , 8341123 , 15261147 , 89351290 , 712322131 , 345371332 , 6128342227 , 4366276800
n×2
41567958
n×3
62351937
n×4
83135916
n×5
103919895
n÷2
10391989.5
n÷3
6927993
n÷3
5195994.75
n÷5
4156795.8
n2
431973783072441
n3
8.9781340359282E+21
n4
1.8660134926192E+29
n5
3.8783185244313E+36
2 √n
4558.9449437342
3 √n
274.94314637359
4 √n
67.519959595176
5 √n
29.076741734659
1 , 3 , 9 , 17 , 27 , 51 , 153 , 459 , 45281 , 135843 , 407529 , 769777 , 1222587 , 2309331 , 6927993 , 20783979
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
-20783978
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 20783979 can be divided by 16 positive divisors.
The sum of these divisors (counting 20783979) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010001101101011
3
Ternary
1110002221021000
4
Quaternary
1033102031223
5
Quinary
20310041404
6
Senary
2021250043
8
Octal
117221553
10
Decimal
20783979
12
Duodecimal
6b63923
16
Hexadecimal
13d236b
20
Vigesimal
69hjij
36
Base36
cdh0r
md5
a4e5981207cfe60d5ce7b5c73ac2dad5
sha1
812932d520472cc60b063235e35d1df4b51218fa
sha256
fbe1722ae0514d7cf7e988f849d75145547ea5dd12974039fec8db1c5170852b
sha512
fdba14355f221556d4886aac412c2378b03dccf485a551b2d6e5dbfba321c1e593df45680bd122cb752d2f1615b34a48f3da94d9179a1870c4fc2460eff48e3c
ripemd-160
930b0ccf56d3e3d9ebf91ef47d23571533bfa597
Diameter
41567958
Circumference
130589591.47753
Area
1.3570856634438E+15
Volume
3.7607519906955E+22
Surface area
5.4283426537751E+15
Circumference
130589591.47753
Perimeter
83135916
Area
431973783072441
Diagonal
29392984.981878
Surface area
2591842698434646
Volume
8.9781340359282E+21
Space diagonal
35998907.611445
Perimeter
62351937
Area
1.870501349548E+14
Altitude
17999453.805722
Surface area
1.870501349548E+14
Volume
1.0580832432011E+21
Height
9797661.6606259