20181118 is an even 8-digits composite number following 20181117
and preceding 20181119 . In scientific notation, it is written as 2.0181118 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 9800640 positive integers (up to 20181118) that are relatively prime to 20181118.
20181118 has 16 divisors, whose sum is 31154256
The reverse of 20181118 is 81118102
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred eighty-one thousand one hundred eighteen
Scientific notation
2.0181118 × 10^7
Engineering notation
2.0181118 × 10^6
Prime Factorization
2 × 61 × 83 × 1993
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20181118
Product of the distinct prime numbers
The prime factorization of 20181118 is 2 × 61 × 83 × 1993.
Since it has a total of 4 prime factors.
7 , 9 , 26 , 94 , 325 , 693 , 6877 , 9737 , 83275 , 74109 , 911597 , 119157 , 5396225 , 2956398 , 41491560 , 34955826 , 491166451 , 48716169 , 200621735 , 6642678653
n×2
40362236
n×3
60543354
n×4
80724472
n×5
100905590
n÷2
10090559
n÷3
6727039.3333333
n÷3
5045279.5
n÷5
4036223.6
n2
407277523729924
n3
8.2193157651414E+21
n4
1.6587498133558E+29
n5
3.3475425715811E+36
2 √n
4492.3399248053
3 √n
272.25868376127
4 √n
67.024920177538
5 √n
28.906069620817
1 , 2 , 61 , 83 , 122 , 166 , 1993 , 3986 , 5063 , 10126 , 121573 , 165419 , 243146 , 330838 , 10090559 , 20181118
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
-20181117
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 20181118 can be divided by 16 positive divisors.
The sum of these divisors (counting 20181118) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111000001111110
3
Ternary
1101222022021211
4
Quaternary
1030333001332
5
Quinary
20131243433
6
Senary
2000315034
8
Octal
114770176
10
Decimal
20181118
12
Duodecimal
6912a7a
16
Hexadecimal
133f07e
20
Vigesimal
662cfi
36
Base36
c0jum
md5
9164d8aa5b22132d9dbedf8824d10ad4
sha1
99ea903149d348d033a49047cedb57ea04036fbb
sha256
b717775c9ab6f2320f1cd984e823d897cb03779039b441b3682c3c9448c6e36b
sha512
ed03f6491fdb3d894e5ba5ceaa9d274dfd66cc8c57b5be83ccaadddaf7eef64ff489f3ab48d7c6d10642c1399dd5444cc608b7479fcc8b9396f132ac980a7f8d
ripemd-160
43f2c70045bc4a7b45a93d8c2a65f08c8b510fdb
Diameter
40362236
Circumference
126801704.10006
Area
1.2795000765222E+15
Volume
3.4428989367071E+22
Surface area
5.1180003060887E+15
Circumference
126801704.10006
Perimeter
80724472
Area
407277523729924
Diagonal
28540410.779452
Surface area
2443665142379544
Volume
8.2193157651414E+21
Space diagonal
34954721.729543
Perimeter
60543354
Area
1.7635634097027E+14
Altitude
17477360.864771
Surface area
1.7635634097027E+14
Volume
9.6865565237416E+20
Height
9513470.2598173