18219812 is an even 8-digits composite number following 18219811
and preceding 18219813 . In scientific notation, it is written as 1.8219812 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 8409120 positive integers (up to 18219812) that are relatively prime to 18219812.
18219812 has 12 divisors, whose sum is 34337436
The reverse of 18219812 is 21891281
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighteen million two hundred nineteen thousand eight hundred twelve
Scientific notation
1.8219812 × 10^7
Engineering notation
1.8219812 × 10^6
Prime Factorization
2 × 2 × 13 × 350381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9109906
Product of the distinct prime numbers
The prime factorization of 18219812 is 2 × 2 × 13 × 350381.
Since it has a total of 4 prime factors.
2 , 4 , 64 , 88 , 867 , 374 , 1261 , 5877 , 16556 , 80055 , 624665 , 843431 , 4362127 , 655703 , 90171212 , 15616022 , 102974286 , 843860251 , 9085571155 , 8728278435
n×2
36439624
n×3
54659436
n×4
72879248
n×5
91099060
n÷2
9109906
n÷3
6073270.6666667
n÷3
4554953
n÷5
3643962.4
n2
331961549315344
n3
6.0482770197543E+21
n4
1.1019847022384E+29
n5
2.007795410166E+36
2 √n
4268.4671721825
3 √n
263.13662319852
4 √n
65.333507269873
5 √n
28.32101266928
1 , 2 , 4 , 13 , 26 , 52 , 350381 , 700762 , 1401524 , 4554953 , 9109906 , 18219812
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18219811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18219812 can be divided by 12 positive divisors.
The sum of these divisors (counting 18219812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000101100000001100100100
3
Ternary
1021021122212212
4
Quaternary
1011200030210
5
Quinary
14131013222
6
Senary
1450302552
8
Octal
105401444
10
Decimal
18219812
12
Duodecimal
6127a58
16
Hexadecimal
1160324
20
Vigesimal
5dh9ac
36
Base36
auihw
md5
f44a8887b611508ff01aae37b12ee8e8
sha1
f2654e0638d7350e525e2abe13b94c850e4e0358
sha256
63ab791bbc2f9abc3501d5291307b90345d396bf557541c6d13611c30b108f96
sha512
3232090cb52bfb4fc74357f7e805a2f286d51bc78fccb586b7e307147866314f2f16a9ae5de216bd992e966bfd2ff20231f145dde149e0a8c9113008cb6509b2
ripemd-160
30cc5102bb0985f7dbe7fa6ba678dd835d37fa6a
Diameter
36439624
Circumference
114478455.05797
Area
1.0428879646034E+15
Volume
2.5334963536181E+22
Surface area
4.1715518584135E+15
Circumference
114478455.05797
Perimeter
72879248
Area
331961549315344
Diagonal
25766705.234288
Surface area
1991769295892064
Volume
6.0482770197543E+21
Space diagonal
31557640.088353
Perimeter
54659436
Area
1.4374356739336E+14
Altitude
15778820.044177
Surface area
1.4374356739336E+14
Volume
7.1279628252717E+20
Height
8588901.7447627