20161979 is an odd 8-digits composite number following 20161978
and preceding 20161980 . In scientific notation, it is written as 2.0161979 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20151984 positive integers (up to 20161979) that are relatively prime to 20161979.
20161979 has 4 divisors, whose sum is 20171976
The reverse of 20161979 is 97916102
Previous prime number is 2803
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred sixty-one thousand nine hundred seventy-nine
Scientific notation
2.0161979 × 10^7
Engineering notation
2.0161979 × 10^6
Prime Factorization
2803 × 7193
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20161979
Product of the distinct prime numbers
The prime factorization of 20161979 is 2803 × 7193.
Since it has a total of 2 prime factors.
6 , 10 , 66 , 7 , 28 , 243 , 677 , 579 , 5913 , 1921 , 395391 , 849056 , 6280299 , 2469144 , 96707838 , 69623422 , 593740138 , 882694167 , 5603261078 , 5733723806
n×2
40323958
n×3
60485937
n×4
80647916
n×5
100809895
n÷2
10080989.5
n÷3
6720659.6666667
n÷3
5040494.75
n÷5
4032395.8
n2
406505397196441
n3
8.1959532816613E+21
n4
1.6524663794984E+29
n5
3.3316992441652E+36
2 √n
4490.2092378864
3 √n
272.17258996731
4 √n
67.009023555685
5 √n
28.900584857762
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
-20161978
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 20161979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20161979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111010010110111011
3
Ternary
1101221100000222
4
Quaternary
1030322112323
5
Quinary
20130140404
6
Senary
2000050255
8
Octal
114722673
10
Decimal
20161979
12
Duodecimal
690398b
16
Hexadecimal
133a5bb
20
Vigesimal
6604ij
36
Base36
c052z
md5
f0b2550e02e9fcc3b9b23b367690c4d8
sha1
bb7bfe4181103fd0196fc19e5e6531e9cc7e0041
sha256
eebcfeb746a63d0bd02e3afea06e8560ebb47fa7bc08deb56404394e533858b6
sha512
d6efdf9d656dcfaf21cf59293ec424cdbd1dc39d4204a5feadc9e3d4e80c19a549d7901cf72974af98de1f7923b1059e7303c2aba39022e26c8291b41cc0426e
ripemd-160
f1ed161ec5bad09d575c10688d201cbce8afea84
Diameter
40323958
Circumference
126681450.21646
Area
1.2770743694769E+15
Volume
3.433112882511E+22
Surface area
5.1082974779078E+15
Circumference
126681450.21646
Perimeter
80647916
Area
406505397196441
Diagonal
28513344.146082
Surface area
2439032383178646
Volume
8.1959532816613E+21
Space diagonal
34921572.009137
Perimeter
60485937
Area
1.760220003738E+14
Altitude
17460786.004568
Surface area
1.760220003738E+14
Volume
9.6590235729181E+20
Height
9504448.0486938