20091818 is an even 8-digits composite number following 20091817
and preceding 20091819 . In scientific notation, it is written as 2.0091818 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 9951916 positive integers (up to 20091818) that are relatively prime to 20091818.
20091818 has 8 divisors, whose sum is 30419712
The reverse of 20091818 is 81819002
Previous prime number is 107
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million ninety-one thousand eight hundred eighteen
Scientific notation
2.0091818 × 10^7
Engineering notation
2.0091818 × 10^6
Prime Factorization
2 × 107 × 93887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20091818
Product of the distinct prime numbers
The prime factorization of 20091818 is 2 × 107 × 93887.
Since it has a total of 3 prime factors.
9 , 9 , 68 , 37 , 663 , 206 , 4303 , 4429 , 96525 , 97326 , 286894 , 983169 , 2403891 , 9162601 , 10400902 , 81381769 , 408336265 , 422915391 , 9985989843 , 3513371926
n×2
40183636
n×3
60275454
n×4
80367272
n×5
100459090
n÷2
10045909
n÷3
6697272.6666667
n÷3
5022954.5
n÷5
4018363.6
n2
403681150545124
n3
8.1106882067832E+21
n4
1.6295847130544E+29
n5
3.274131947027E+36
2 √n
4482.3897644002
3 √n
271.85651493645
4 √n
66.950651710049
5 √n
28.880442764732
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20091817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20091818 can be divided by 8 positive divisors.
The sum of these divisors (counting 20091818) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101001001110101010
3
Ternary
1101210202210102
4
Quaternary
1030221032222
5
Quinary
20120414233
6
Senary
1554345402
8
Octal
114511652
10
Decimal
20091818
12
Duodecimal
688b262
16
Hexadecimal
13293aa
20
Vigesimal
65b9ai
36
Base36
bymy2
md5
9ba904a17d783e92a5a1a5c4efaa97b9
sha1
dd85a1247e64c1c524cf23bf56f24c80986a654a
sha256
bb5599e77f8a05bb72751f229ad79a840796869c796766d8bbd81f71175f3d9d
sha512
56dbce3642b50ee0034d40272cf2b7241fdda976497379f6aa508826855f6f2604da96efdcb400e9e400007db7cd3418b8c37c984f1b487d1ecacfdd491eb44c
ripemd-160
dcef0cf4d4ed73a70adf33a0c34f980cf0eef7af
Diameter
40183636
Circumference
126240615.65213
Area
1.2682017369452E+15
Volume
3.397397131465E+22
Surface area
5.0728069477809E+15
Circumference
126240615.65213
Perimeter
80367272
Area
403681150545124
Diagonal
28414121.508332
Surface area
2422086903270744
Volume
8.1106882067832E+21
Space diagonal
34800049.592427
Perimeter
60275454
Area
1.747990657005E+14
Altitude
17400024.796213
Surface area
1.747990657005E+14
Volume
9.5585377185103E+20
Height
9471373.8361106