18213812 is an even 8-digits composite number following 18213811
and preceding 18213813 . In scientific notation, it is written as 1.8213812 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 9106904 positive integers (up to 18213812) that are relatively prime to 18213812.
18213812 has 6 divisors, whose sum is 31874178
The reverse of 18213812 is 21831281
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighteen million two hundred thirteen thousand eight hundred twelve
Scientific notation
1.8213812 × 10^7
Engineering notation
1.8213812 × 10^6
Prime Factorization
2 × 2 × 4553453
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
9106906
Product of the distinct prime numbers
The prime factorization of 18213812 is 2 × 2 × 4553453.
Since it has a total of 3 prime factors.
3 , 6 , 82 , 39 , 438 , 657 , 6432 , 4526 , 23721 , 62179 , 224841 , 967170 , 5772935 , 2925995 , 95497421 , 56321132 , 259679267 , 261445570 , 438285833 , 5600199570
n×2
36427624
n×3
54641436
n×4
72855248
n×5
91069060
n÷2
9106906
n÷3
6071270.6666667
n÷3
4553453
n÷5
3642762.4
n2
331742947571344
n3
6.0423036793903E+21
n4
1.1005338326332E+29
n5
2.0044916327221E+36
2 √n
4267.7642858996
3 √n
263.10773535784
4 √n
65.32812783097
5 √n
28.319147134511
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
-18213811
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 18213812 can be divided by 6 positive divisors.
The sum of these divisors (counting 18213812) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1000101011110101110110100
3
Ternary
1021021100122122
4
Quaternary
1011132232310
5
Quinary
14130320222
6
Senary
1450215112
8
Octal
105365664
10
Decimal
18213812
12
Duodecimal
6124498
16
Hexadecimal
115ebb4
20
Vigesimal
5dgeac
36
Base36
audv8
md5
c651a8cc854edd966d27c9c185b79ff1
sha1
220a5a28fe567171d28c91b2d9f321da3d6bd150
sha256
9f581e862c755d0b6f3f585342297a0160a99ac91c7d44e1be6a5f5aace48419
sha512
7742b9ecb59d2b61f89361ab760656cdb091ea2cd505a8132d305266722527618d02e5c4f817f1209fa26a5b8b3ab23d5c31957c79670b636bd7bfc3d00a33a5
ripemd-160
b663ecd7504d0a9b51f0082f22bc519d1f087808
Diameter
36427624
Circumference
114440755.94613
Area
1.0422012069704E+15
Volume
2.5309942466575E+22
Surface area
4.1688048278814E+15
Circumference
114440755.94613
Perimeter
72855248
Area
331742947571344
Diagonal
25758219.952914
Surface area
1990457685428064
Volume
6.0423036793903E+21
Space diagonal
31547247.783508
Perimeter
54641436
Area
1.4364891006156E+14
Altitude
15773623.891754
Surface area
1.4364891006156E+14
Volume
7.1209231761422E+20
Height
8586073.3176379