20185018 is an even 8-digits composite number following 20185017
and preceding 20185019 . In scientific notation, it is written as 2.0185018 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 8141760 positive integers (up to 20185018) that are relatively prime to 20185018.
20185018 has 16 divisors, whose sum is 36638784
The reverse of 20185018 is 81058102
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty-five thousand eighteen
Scientific notation
2.0185018 × 10^7
Engineering notation
2.0185018 × 10^6
Prime Factorization
2 × 7 × 17 × 84811
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20185018
Product of the distinct prime numbers
The prime factorization of 20185018 is 2 × 7 × 17 × 84811.
Since it has a total of 4 prime factors.
10 , 9 , 65 , 89 , 231 , 834 , 5583 , 248 , 18907 , 79513 , 91289 , 414839 , 786421 , 2373378 , 45705547 , 18538789 , 356869829 , 686965502 , 3238153407 , 3024876380
n×2
40370036
n×3
60555054
n×4
80740072
n×5
100925090
n÷2
10092509
n÷3
6728339.3333333
n÷3
5046254.5
n÷5
4037003.6
n2
407434951660324
n3
8.2240818330928E+21
n4
1.6600323983445E+29
n5
3.3507783841167E+36
2 √n
4492.7739760642
3 √n
272.2762206238
4 √n
67.028158083482
5 √n
28.907186753755
1 , 2 , 7 , 14 , 17 , 34 , 119 , 238 , 84811 , 169622 , 593677 , 1187354 , 1441787 , 2883574 , 10092509 , 20185018
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
-20185017
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 20185018 can be divided by 16 positive divisors.
The sum of these divisors (counting 20185018) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111111110111010
3
Ternary
1101222111122021
4
Quaternary
1030333332322
5
Quinary
20131410033
6
Senary
2000345054
8
Octal
114777672
10
Decimal
20185018
12
Duodecimal
691518a
16
Hexadecimal
133ffba
20
Vigesimal
6632ai
36
Base36
c0muy
md5
8e34dbfc77229709425e97e3e4b08f97
sha1
41d3d77e837f44365ebd7f967938c706db399df1
sha256
b907ff4ddb08ec36473e1480e3a973a5ae0adf346b9a4830430e37881600b7f1
sha512
da4c5959802bec5b55f57b14d06ecb351b7db3bf37f268a817900b63bded0d40577591a883d6c12e03312416dbb451a48c96229206e27d3d69ed71bebf6daad3
ripemd-160
10cd7b3967ee8847c3a08e6c8a76690f2db1c495
Diameter
40370036
Circumference
126826208.52276
Area
1.2799946509518E+15
Volume
3.4448953425821E+22
Surface area
5.1199786038071E+15
Circumference
126826208.52276
Perimeter
80740072
Area
407434951660324
Diagonal
28545926.212345
Surface area
2444609709961944
Volume
8.2240818330928E+21
Space diagonal
34961476.727692
Perimeter
60555054
Area
1.7642450926376E+14
Altitude
17480738.363846
Surface area
1.7642450926376E+14
Volume
9.6921733886883E+20
Height
9515308.7374483