20181641 is an odd 8-digits composite number following 20181640
and preceding 20181642 . In scientific notation, it is written as 2.0181641 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20106900 positive integers (up to 20181641) that are relatively prime to 20181641.
20181641 has 4 divisors, whose sum is 20256384
The reverse of 20181641 is 14618102
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred eighty-one thousand six hundred forty-one
Scientific notation
2.0181641 × 10^7
Engineering notation
2.0181641 × 10^6
Prime Factorization
271 × 74471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20181641
Product of the distinct prime numbers
The prime factorization of 20181641 is 271 × 74471.
Since it has a total of 2 prime factors.
9 , 6 , 42 , 61 , 654 , 580 , 1557 , 1077 , 74614 , 8217 , 613834 , 665051 , 4096180 , 9517190 , 13561488 , 17636267 , 745551579 , 653790978 , 2870344885 , 9142564392
n×2
40363282
n×3
60544923
n×4
80726564
n×5
100908205
n÷2
10090820.5
n÷3
6727213.6666667
n÷3
5045410.25
n÷5
4036328.2
n2
407298633452881
n3
8.2199548001366E+21
n4
1.6589217681258E+29
n5
3.3479763571401E+36
2 √n
4492.398134627
3 √n
272.26103563067
4 √n
67.025354416273
5 √n
28.906219441236
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
-20181640
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 20181641 can be divided by 4 positive divisors.
The sum of these divisors (counting 20181641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111001010001001
3
Ternary
1101222100000012
4
Quaternary
1030333022021
5
Quinary
20131303031
6
Senary
2000321305
8
Octal
114771211
10
Decimal
20181641
12
Duodecimal
6913235
16
Hexadecimal
133f289
20
Vigesimal
662e21
36
Base36
c0k95
md5
da859b68465e06caf89c115d078ce739
sha1
ce0033965ca8515fb69d9eed45de4f9bdcc9eebf
sha256
ed0de9d95add7b7f3b18b0ba88800f5c2d32f40c9c941464d2c3832d63770bfb
sha512
a15de3b65b7a935f8f553934c5eaec2c42772e38dabee5501570889fc2afc9204539ab9835d3790dfa07c961b8d6e6ba2bb33749bf42dd120873ea1fbf185eac
ripemd-160
1b6a285ac0f440bd231c14d0046d515f8ac95485
Diameter
40363282
Circumference
126804990.20597
Area
1.2795663946727E+15
Volume
3.4431666150599E+22
Surface area
5.1182655786909E+15
Circumference
126804990.20597
Perimeter
80726564
Area
407298633452881
Diagonal
28541150.413145
Surface area
2443791800717286
Volume
8.2199548001366E+21
Space diagonal
34955627.592115
Perimeter
60544923
Area
1.7636548174844E+14
Altitude
17477813.796058
Surface area
1.7636548174844E+14
Volume
9.6873096337059E+20
Height
9513716.8043816