18121018 is an even 8-digits composite number following 18121017
and preceding 18121019 . In scientific notation, it is written as 1.8121018 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 8889504 positive integers (up to 18121018) that are relatively prime to 18121018.
18121018 has 8 divisors, whose sum is 27694548
The reverse of 18121018 is 81012181
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighteen million one hundred twenty-one thousand eighteen
Scientific notation
1.8121018 × 10^7
Engineering notation
1.8121018 × 10^6
Prime Factorization
2 × 53 × 170953
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18121018
Product of the distinct prime numbers
The prime factorization of 18121018 is 2 × 53 × 170953.
Since it has a total of 3 prime factors.
8 , 6 , 45 , 8 , 396 , 686 , 7672 , 4671 , 58689 , 10273 , 623546 , 540006 , 7584732 , 1560907 , 82691527 , 73936424 , 42700500 , 138862948 , 9050114099 , 9832950291
n×2
36242036
n×3
54363054
n×4
72484072
n×5
90605090
n÷2
9060509
n÷3
6040339.3333333
n÷3
4530254.5
n÷5
3624203.6
n2
328371293356324
n3
5.9504221175932E+21
n4
1.078277063005E+29
n5
1.9539478067702E+36
2 √n
4256.87890361
3 √n
262.66015563007
4 √n
65.244761503204
5 √n
28.290232609535
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
-18121017
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 18121018 can be divided by 8 positive divisors.
The sum of these divisors (counting 18121018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101001000000100111010
3
Ternary
1021002122100211
4
Quaternary
1011020010322
5
Quinary
14114333033
6
Senary
1444221334
8
Octal
105100472
10
Decimal
18121018
12
Duodecimal
609a84a
16
Hexadecimal
114813a
20
Vigesimal
5d52ai
36
Base36
ase9m
md5
afd4d4b2cc8804ec7c50c038db4b5cfe
sha1
1e58c2020e398e86f3ecbcdd0bb041694e23f358
sha256
679c035c40512009fb0d2dee7db7993cf1ebbb6a0f15ce52b245ce9cceae26ad
sha512
3eab6ea2c455f122ff0d7a67124a0826f2c35f4e45d6af7234f39228df8b4a9f591e72e8f1366d5813d595689895c2938568a62041ef4238b2735fefcbab4d36
ripemd-160
e04547e500c9361f416683d0a42d474155aa4355
Diameter
36242036
Circumference
113857714.04874
Area
1.031608842858E+15
Volume
2.4925069880519E+22
Surface area
4.126435371432E+15
Circumference
113857714.04874
Perimeter
72484072
Area
328371293356324
Diagonal
25626989.419607
Surface area
1970227760137944
Volume
5.9504221175932E+21
Space diagonal
31386523.86087
Perimeter
54363054
Area
1.4218894096006E+14
Altitude
15693261.930435
Surface area
1.4218894096006E+14
Volume
7.012639717121E+20
Height
8542329.8065357