20161389 is an odd 8-digits composite number following 20161388
and preceding 20161390 . In scientific notation, it is written as 2.0161389 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13381776 positive integers (up to 20161389) that are relatively prime to 20161389.
20161389 has 8 divisors, whose sum is 27000160
The reverse of 20161389 is 98316102
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred sixty-one thousand three hundred eighty-nine
Scientific notation
2.0161389 × 10^7
Engineering notation
2.0161389 × 10^6
Prime Factorization
3 × 229 × 29347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20161389
Product of the distinct prime numbers
The prime factorization of 20161389 is 3 × 229 × 29347.
Since it has a total of 3 prime factors.
6 , 10 , 32 , 92 , 806 , 211 , 9780 , 8002 , 69742 , 94479 , 166970 , 63990 , 9596531 , 2556888 , 55623094 , 39674724 , 783477110 , 411179798 , 6794579559 , 9966653252
n×2
40322778
n×3
60484167
n×4
80645556
n×5
100806945
n÷2
10080694.5
n÷3
6720463
n÷3
5040347.25
n÷5
4032277.8
n2
406481606409321
n3
8.1952337881632E+21
n4
1.652272963491E+29
n5
3.3312117951125E+36
2 √n
4490.1435389083
3 √n
272.16993507921
4 √n
67.008533329034
5 √n
28.900415712217
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
-20161388
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 20161389 can be divided by 8 positive divisors.
The sum of these divisors (counting 20161389) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111010001101101101
3
Ternary
1101221022020010
4
Quaternary
1030322031231
5
Quinary
20130131024
6
Senary
2000043433
8
Octal
114721555
10
Decimal
20161389
12
Duodecimal
6903579
16
Hexadecimal
133a36d
20
Vigesimal
660399
36
Base36
c04ml
md5
fdbeacfa4eb09d449c7f3f6ad39255de
sha1
235f86fe0dc1dde58ffb98313f3bd2bfdfdaa18c
sha256
e984ac67375331687340544c55cbf702f65a24a1f08ea0d4c61863d0eb40ee89
sha512
802f885815b2be24d226a14e186580aef835d322f2468c0157c0579ca4f2e2cca5c3baeb0264385851ecf73961742bb6ade798df854baa23df607aee64b347c4
ripemd-160
fb214643c1b9102941f6aae4956aec7b08eec0b2
Diameter
40322778
Circumference
126677743.13713
Area
1.2769996285149E+15
Volume
3.4328115017793E+22
Surface area
5.1079985140596E+15
Circumference
126677743.13713
Perimeter
80645556
Area
406481606409321
Diagonal
28512509.76008
Surface area
2438889638455926
Volume
8.1952337881632E+21
Space diagonal
34920550.09916
Perimeter
60484167
Area
1.7601169866079E+14
Altitude
17460275.04958
Surface area
1.7601169866079E+14
Volume
9.6581756416989E+20
Height
9504169.9200266