18821812 is an even 8-digits composite number following 18821811
and preceding 18821813 . In scientific notation, it is written as 1.8821812 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 9086336 positive integers (up to 18821812) that are relatively prime to 18821812.
18821812 has 12 divisors, whose sum is 34074180
The reverse of 18821812 is 21812881
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million eight hundred twenty-one thousand eight hundred twelve
Scientific notation
1.8821812 × 10^7
Engineering notation
1.8821812 × 10^6
Prime Factorization
2 × 2 × 29 × 162257
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9410906
Product of the distinct prime numbers
The prime factorization of 18821812 is 2 × 2 × 29 × 162257.
Since it has a total of 4 prime factors.
2 , 7 , 33 , 51 , 612 , 105 , 6209 , 4259 , 28971 , 9715 , 337903 , 803593 , 3503489 , 4445154 , 23750062 , 53123140 , 13471795 , 481459684 , 6841507846 , 5438993762
n×2
37643624
n×3
56465436
n×4
75287248
n×5
94109060
n÷2
9410906
n÷3
6273937.3333333
n÷3
4705453
n÷5
3764362.4
n2
354260606963344
n3
6.66782654327E+21
n4
1.2550057764604E+29
n5
2.3621482783451E+36
2 √n
4338.411229932
3 √n
266.00337305162
4 √n
65.866616961341
5 √n
28.505737808008
1 , 2 , 4 , 29 , 58 , 116 , 162257 , 324514 , 649028 , 4705453 , 9410906 , 18821812
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
-18821811
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 18821812 can be divided by 12 positive divisors.
The sum of these divisors (counting 18821812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000111110011001010110100
3
Ternary
1022102020200011
4
Quaternary
1013303022310
5
Quinary
14304244222
6
Senary
1511230004
8
Octal
107631264
10
Decimal
18821812
12
Duodecimal
6378304
16
Hexadecimal
11f32b4
20
Vigesimal
5hceac
36
Base36
b7f04
md5
92406a44afccca2a39f2d4edd4d6268f
sha1
84de2f92611c95b0f5742af2a5a9c5ec171a3a86
sha256
9cc77ffc547ece66090c025f1706e122f46eb2341837ed7fd0763d3fec9bb8d3
sha512
7f3ad26f44d5a1b2dccd5a0a85cfed5504e32ee48830182f036f70251a7192d7c8d7d2011b6d429ac1a6372d86ab1495476af03ed08ad59eb01b7981e7b406da
ripemd-160
d2c63a8fcab4a2b8328d54754a721633e6a64430
Diameter
37643624
Circumference
118260932.6129
Area
1.1129425202923E+15
Volume
2.7930126511664E+22
Surface area
4.4517700811692E+15
Circumference
118260932.6129
Perimeter
75287248
Area
354260606963344
Diagonal
26618061.798837
Surface area
2125563641780064
Volume
6.66782654327E+21
Space diagonal
32600334.67451
Perimeter
56465436
Area
1.5339934259518E+14
Altitude
16300167.337255
Surface area
1.5339934259518E+14
Volume
7.8581089408697E+20
Height
8872687.2662789