18219813 is an odd 8-digits composite number following 18219812
and preceding 18219814 . In scientific notation, it is written as 1.8219813 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12009888 positive integers (up to 18219813) that are relatively prime to 18219813.
18219813 has 8 divisors, whose sum is 24566400
The reverse of 18219813 is 31891281
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million two hundred nineteen thousand eight hundred thirteen
Scientific notation
1.8219813 × 10^7
Engineering notation
1.8219813 × 10^6
Prime Factorization
3 × 89 × 68239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18219813
Product of the distinct prime numbers
The prime factorization of 18219813 is 3 × 89 × 68239.
Since it has a total of 3 prime factors.
8 , 3 , 80 , 100 , 734 , 157 , 9463 , 5119 , 46371 , 38469 , 89679 , 854740 , 3913781 , 1978223 , 52210970 , 24660596 , 928263186 , 329648830 , 2555624794 , 797614314
n×2
36439626
n×3
54659439
n×4
72879252
n×5
91099065
n÷2
9109906.5
n÷3
6073271
n÷3
4554953.25
n÷5
3643962.6
n2
331961585754969
n3
6.048278015639E+21
n4
1.1019849441695E+29
n5
2.0077959611584E+36
2 √n
4268.4672893206
3 √n
263.13662801263
4 √n
65.333508166335
5 √n
28.321012980162
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
-18219812
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 18219813 can be divided by 8 positive divisors.
The sum of these divisors (counting 18219813) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101100000001100100101
3
Ternary
1021021122212220
4
Quaternary
1011200030211
5
Quinary
14131013223
6
Senary
1450302553
8
Octal
105401445
10
Decimal
18219813
12
Duodecimal
6127a59
16
Hexadecimal
1160325
20
Vigesimal
5dh9ad
36
Base36
auihx
md5
3db1b52a326c50cde93f348c9c8b5f42
sha1
4341294e82a7269d4a9e3ba2c2459b28c52ddc28
sha256
4e4d88f3af1b67b416c9ff912f15129d3f88412ef2e5a14f766aae07aa955767
sha512
b562bf2600a28762b21dc038c69b39b145ae899af69553cbf008552ef99c8a71d02467f86b93d53ab65102207cf305d24fbbea59a674706a97fd3990b63e864d
ripemd-160
4acd1712526890b406990a71effa30e5cd1bf625
Diameter
36439626
Circumference
114478461.34116
Area
1.0428880790818E+15
Volume
2.5334967707734E+22
Surface area
4.1715523163273E+15
Circumference
114478461.34116
Perimeter
72879252
Area
331961585754969
Diagonal
25766706.648502
Surface area
1991769514529814
Volume
6.048278015639E+21
Space diagonal
31557641.820404
Perimeter
54659439
Area
1.4374358317218E+14
Altitude
15778820.910202
Surface area
1.4374358317218E+14
Volume
7.1279639989331E+20
Height
8588902.2161672