20180390 is an even 8-digits composite number following 20180389
and preceding 20180391 . In scientific notation, it is written as 2.0180390 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7900224 positive integers (up to 20180390) that are relatively prime to 20180390.
20180390 has 16 divisors, whose sum is 37098432
The reverse of 20180390 is 09308102
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred eighty thousand three hundred ninety
Scientific notation
2.0180390 × 10^7
Engineering notation
2.0180390 × 10^6
Prime Factorization
2 × 5 × 47 × 42937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20180390
Product of the distinct prime numbers
The prime factorization of 20180390 is 2 × 5 × 47 × 42937.
Since it has a total of 4 prime factors.
9 , 5 , 16 , 60 , 421 , 553 , 7569 , 3359 , 66394 , 33274 , 73173 , 723329 , 6619300 , 6563939 , 79184140 , 78161496 , 466466109 , 285996460 , 4517759332 , 9280895306
n×2
40360780
n×3
60541170
n×4
80721560
n×5
100901950
n÷2
10090195
n÷3
6726796.6666667
n÷3
5045097.5
n÷5
4036078
n2
407248140552100
n3
8.2184263031162E+21
n4
1.6585104798314E+29
n5
3.3469388302085E+36
2 √n
4492.2588972587
3 √n
272.25540996337
4 √n
67.024315716453
5 √n
28.905861070207
1 , 2 , 5 , 10 , 47 , 94 , 235 , 470 , 42937 , 85874 , 214685 , 429370 , 2018039 , 4036078 , 10090195 , 20180390
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
-20180389
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 20180390 can be divided by 16 positive divisors.
The sum of these divisors (counting 20180390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110110110100110
3
Ternary
1101222021021212
4
Quaternary
1030332312212
5
Quinary
20131233030
6
Senary
2000311422
8
Octal
114766646
10
Decimal
20180390
12
Duodecimal
6912572
16
Hexadecimal
133eda6
20
Vigesimal
662aja
36
Base36
c0jae
md5
9581fc5f98e551573381a4fe853bfad7
sha1
014f39798deeb9f421ac3a96d11b4431730d0e26
sha256
3af7a6450b19ce908f29e4b4c778bd31b5d2d5de3b06c628db57008109c37f68
sha512
1a7f30c40a11cbd6c5678141d303b32ac55c8cdbb1ced5aff405068f4fed0463038f4b04cff92a1030b39d0b007e683148d52a30e04345dcc65adb1ca9fe63bb
ripemd-160
7c65bc4eb587d491dbbfc4f18bc3311edd4e9a68
Diameter
40360780
Circumference
126797129.94115
Area
1.2794077665466E+15
Volume
3.4425263597252E+22
Surface area
5.1176310661863E+15
Circumference
126797129.94115
Perimeter
80721560
Area
407248140552100
Diagonal
28539381.231978
Surface area
2443488843312600
Volume
8.2184263031162E+21
Space diagonal
34953460.796555
Perimeter
60541170
Area
1.7634361768105E+14
Altitude
17476730.398277
Surface area
1.7634361768105E+14
Volume
9.6855082826922E+20
Height
9513127.0773261