20180491 is an odd 8-digits composite number following 20180490
and preceding 20180492 . In scientific notation, it is written as 2.0180491 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19484584 positive integers (up to 20180491) that are relatively prime to 20180491.
20180491 has 4 divisors, whose sum is 20876400
The reverse of 20180491 is 19408102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty thousand four hundred ninety-one
Scientific notation
2.0180491 × 10^7
Engineering notation
2.0180491 × 10^6
Prime Factorization
29 × 695879
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180491
Product of the distinct prime numbers
The prime factorization of 20180491 is 29 × 695879.
Since it has a total of 2 prime factors.
4 , 10 , 68 , 17 , 541 , 283 , 9603 , 8052 , 50105 , 42661 , 758632 , 869944 , 5970011 , 4833550 , 54093717 , 48467964 , 911430239 , 840112685 , 5142836926 , 2452876562
n×2
40360982
n×3
60541473
n×4
80721964
n×5
100902455
n÷2
10090245.5
n÷3
6726830.3333333
n÷3
5045122.75
n÷5
4036098.2
n2
407252217001081
n3
8.2185496999204E+21
n4
1.658543682523E+29
n5
3.3470225858261E+36
2 √n
4492.2701388051
3 √n
272.25586416257
4 √n
67.024399578102
5 √n
28.905890004099
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
-20180490
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 20180491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111000001011
3
Ternary
1101222021102121
4
Quaternary
1030332320023
5
Quinary
20131233431
6
Senary
2000312111
8
Octal
114767013
10
Decimal
20180491
12
Duodecimal
6912637
16
Hexadecimal
133ee0b
20
Vigesimal
662b4b
36
Base36
c0jd7
md5
a4dfc503f6b4191c84b10eaaa75e822b
sha1
bdd494b94bc5a2cdacf698145d7172495a4674af
sha256
f0b75251f248e7b850ecf9bff2eb77ef7072e18acd52f509dafd2fe62a3de473
sha512
d828d636fbf967c2e1fc316c4ffbd751245eb3a4c86d8081de99e486d180111ab0d8f4f805e6f15bf07c252f4e0f4f858f1103f0e53a25fd2770c8a7369a2a89
ripemd-160
6e0b23ffa2c557db64cfd1c79ad38ee1c43e038f
Diameter
40360982
Circumference
126797764.54287
Area
1.2794205730888E+15
Volume
3.4425780480577E+22
Surface area
5.117682292355E+15
Circumference
126797764.54287
Perimeter
80721964
Area
407252217001081
Diagonal
28539524.067548
Surface area
2443513302006486
Volume
8.2185496999204E+21
Space diagonal
34953635.733686
Perimeter
60541473
Area
1.7634538283523E+14
Altitude
17476817.866843
Surface area
1.7634538283523E+14
Volume
9.6856537072206E+20
Height
9513174.6891827