18189868 is an even 8-digits composite number following 18189867
and preceding 18189869 . In scientific notation, it is written as 1.8189868 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 6 positive divisors.
There are 9094932 positive integers (up to 18189868) that are relatively prime to 18189868.
18189868 has 6 divisors, whose sum is 31832276
The reverse of 18189868 is 86898181
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million one hundred eighty-nine thousand eight hundred sixty-eight
Scientific notation
1.8189868 × 10^7
Engineering notation
1.8189868 × 10^6
Prime Factorization
2 × 2 × 4547467
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
9094934
Product of the distinct prime numbers
The prime factorization of 18189868 is 2 × 2 × 4547467.
Since it has a total of 3 prime factors.
4 , 9 , 82 , 36 , 391 , 30 , 8593 , 1450 , 62571 , 66930 , 945987 , 603560 , 3494677 , 4200554 , 41251581 , 9489331 , 128923655 , 20555787 , 5899206071 , 1704773812
n×2
36379736
n×3
54569604
n×4
72759472
n×5
90949340
n÷2
9094934
n÷3
6063289.3333333
n÷3
4547467
n÷5
3637973.6
n2
330871297857424
n3
6.0185052330152E+21
n4
1.0947581574586E+29
n5
1.9913506376094E+36
2 √n
4264.9581475086
3 √n
262.99239039797
4 √n
65.306647039246
5 √n
28.311697507815
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18189867
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18189868 can be divided by 6 positive divisors.
The sum of these divisors (counting 18189868) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1000101011000111000101100
3
Ternary
1021020010210211
4
Quaternary
1011120320230
5
Quinary
14124033433
6
Senary
1445512204
8
Octal
105307054
10
Decimal
18189868
12
Duodecimal
6112664
16
Hexadecimal
1158e2c
20
Vigesimal
5dded8
36
Base36
atve4
md5
f2126555e221822575364e100a6c1827
sha1
8204b110964c2762d85905eae649148d47922b0f
sha256
a1a401e7995008d2abb139fd3227859935f02c50e5200743e2c40c8240664309
sha512
767e6ad669ff805f7caab77d7b7d962e85a2ad323fa88b2b54c33b1e94014ab26ffb825e0635d8deee94ff73b0086340d18535e3aa1291acceaa06b0900a09ac
ripemd-160
450f2f0d5c3264123fbd477333b8dd46ea8734ca
Diameter
36379736
Circumference
114290311.35714
Area
1.0394628386326E+15
Volume
2.521025576751E+22
Surface area
4.1578513545304E+15
Circumference
114290311.35714
Perimeter
72759472
Area
330871297857424
Diagonal
25724358.023376
Surface area
1985227787144544
Volume
6.0185052330152E+21
Space diagonal
31505775.558971
Perimeter
54569604
Area
1.4327147466383E+14
Altitude
15752887.779486
Surface area
1.4327147466383E+14
Volume
7.0928764381196E+20
Height
8574786.0077921