20180494 is an even 8-digits composite number following 20180493
and preceding 20180495 . In scientific notation, it is written as 2.0180494 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10090246 positive integers (up to 20180494) that are relatively prime to 20180494.
20180494 has 4 divisors, whose sum is 30270744
The reverse of 20180494 is 49408102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eighty thousand four hundred ninety-four
Scientific notation
2.0180494 × 10^7
Engineering notation
2.0180494 × 10^6
Prime Factorization
2 × 10090247
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180494
Product of the distinct prime numbers
The prime factorization of 20180494 is 2 × 10090247.
Since it has a total of 2 prime factors.
8 , 10 , 55 , 57 , 585 , 516 , 1112 , 9696 , 14153 , 85764 , 98757 , 241912 , 1046752 , 9110378 , 74896219 , 97962046 , 421517150 , 5847040 , 6060255258 , 9352493270
n×2
40360988
n×3
60541482
n×4
80721976
n×5
100902470
n÷2
10090247
n÷3
6726831.3333333
n÷3
5045123.5
n÷5
4036098.8
n2
407252338084036
n3
8.2185533651909E+21
n4
1.6585446687491E+29
n5
3.3470250736424E+36
2 √n
4492.270472712
3 √n
272.25587765361
4 √n
67.024402069037
5 √n
28.90589086352
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
-20180493
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 20180494 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180494) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111000001110
3
Ternary
1101222021102201
4
Quaternary
1030332320032
5
Quinary
20131233434
6
Senary
2000312114
8
Octal
114767016
10
Decimal
20180494
12
Duodecimal
691263a
16
Hexadecimal
133ee0e
20
Vigesimal
662b4e
36
Base36
c0jda
md5
305f1f5550e9bf30b055a43abd93d871
sha1
a9104bc46e338c350809a1a66501791e202259e1
sha256
1b1a2e067fee7c5f82e672e262ad564184f153c6e4aba2ac553df16cb32b9768
sha512
0cd135f59e396ca082eac5adac6d5f34838a5bd5efacfaff37901fbc13efd22af67f3254f5dded25e41d0e6648973d01751abe22ae7c384221ea24c66f4bc2de
ripemd-160
129db8a987a530b8dc95b2de06a22b746c530f34
Diameter
40360988
Circumference
126797783.39243
Area
1.2794209534821E+15
Volume
3.4425795833626E+22
Surface area
5.1176838139283E+15
Circumference
126797783.39243
Perimeter
80721976
Area
407252338084036
Diagonal
28539528.310189
Surface area
2443514028504216
Volume
8.2185533651909E+21
Space diagonal
34953640.929839
Perimeter
60541482
Area
1.7634543526569E+14
Altitude
17476820.464919
Surface area
1.7634543526569E+14
Volume
9.6856580267833E+20
Height
9513176.1033963