18102942 is an even 8-digits composite number following 18102941
and preceding 18102943 . In scientific notation, it is written as 1.8102942 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 5054400 positive integers (up to 18102942) that are relatively prime to 18102942.
18102942 has 32 divisors, whose sum is 32780160
The reverse of 18102942 is 24920181
Previous prime number is 143
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighteen million one hundred two thousand nine hundred forty-two
Scientific notation
1.8102942 × 10^7
Engineering notation
1.8102942 × 10^6
Prime Factorization
2 × 9 × 13 × 143 × 541
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18102942
Product of the distinct prime numbers
The prime factorization of 18102942 is 2 × 9 × 13 × 143 × 541.
Since it has a total of 5 prime factors.
9 , 2 , 1 , 54 , 915 , 930 , 2181 , 5887 , 57860 , 36485 , 598759 , 620891 , 9906383 , 5827793 , 79216064 , 51445212 , 695004537 , 255107443 , 1377676847 , 3702919292
n×2
36205884
n×3
54308826
n×4
72411768
n×5
90514710
n÷2
9051471
n÷3
6034314
n÷3
4525735.5
n÷5
3620588.4
n2
327716509055364
n3
5.9326329558717E+21
n4
1.0739811030743E+29
n5
1.9442217618051E+36
2 √n
4254.7552221015
3 √n
262.57279069778
4 √n
65.228484744792
5 √n
28.284586365948
1 , 2 , 9 , 13 , 18 , 26 , 117 , 143 , 234 , 286 , 541 , 1082 , 1287 , 1859 , 2574 , 3718 , 4869 , 7033 , 9738 , 14066 , 16731 , 33462 , 63297 , 77363 , 126594 , 154726 , 696267 , 1005719 , 1392534 , 2011438 , 9051471 , 18102942
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18102941
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18102942 can be divided by 32 positive divisors.
The sum of these divisors (counting 18102942) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000101000011101010011110
3
Ternary
1021001201120100
4
Quaternary
1011003222132
5
Quinary
14113243232
6
Senary
1444001530
8
Octal
105035236
10
Decimal
18102942
12
Duodecimal
60902a6
16
Hexadecimal
1143a9e
20
Vigesimal
5d2h72
36
Base36
as0bi
md5
a18bcb4e47e8a78a1115370ff88751cb
sha1
91726db4ddc793aacb35c75912b581533012db92
sha256
69d44bc84c292c52f8bace3cbb43344426d1d22c740b43d3527b6502f80c09f7
sha512
4687fd21b28c2dc80905a117a476c734a11e348b60665c65c0871bf7589fcf78f7d2fa4a02d14e2a4803b6d197c73883529ce52f9c5411872a7a0166111665a5
ripemd-160
0e52323071211042ca058cc4c0a90f86865db788
Diameter
36205884
Circumference
113744139.19112
Area
1.0295517773084E+15
Volume
2.4850554814148E+22
Surface area
4.1182071092337E+15
Circumference
113744139.19112
Perimeter
72411768
Area
327716509055364
Diagonal
25601426.095254
Surface area
1966299054332184
Volume
5.9326329558717E+21
Space diagonal
31355215.310473
Perimeter
54308826
Area
1.4190541104075E+14
Altitude
15677607.655236
Surface area
1.4190541104075E+14
Volume
6.9916749889795E+20
Height
8533808.6984178