18381812 is an even 8-digits composite number following 18381811
and preceding 18381813 . In scientific notation, it is written as 1.8381812 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 8977080 positive integers (up to 18381812) that are relatively prime to 18381812.
18381812 has 12 divisors, whose sum is 32916576
The reverse of 18381812 is 21818381
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighteen million three hundred eighty-one thousand eight hundred twelve
Scientific notation
1.8381812 × 10^7
Engineering notation
1.8381812 × 10^6
Prime Factorization
2 × 2 × 43 × 106871
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9190906
Product of the distinct prime numbers
The prime factorization of 18381812 is 2 × 2 × 43 × 106871.
Since it has a total of 4 prime factors.
1 , 8 , 65 , 60 , 988 , 991 , 2628 , 9907 , 94919 , 5064 , 252741 , 753231 , 4516920 , 2336737 , 68252941 , 59449212 , 609064951 , 37592636 , 7477669164 , 7956815770
n×2
36763624
n×3
55145436
n×4
73527248
n×5
91909060
n÷2
9190906
n÷3
6127270.6666667
n÷3
4595453
n÷5
3676362.4
n2
337891012403344
n3
6.2110490664879E+21
n4
1.1417033626296E+29
n5
2.0986576571625E+36
2 √n
4287.4015440591
3 √n
263.91420919164
4 √n
65.478252451169
5 √n
28.371197303651
1 , 2 , 4 , 43 , 86 , 172 , 106871 , 213742 , 427484 , 4595453 , 9190906 , 18381812
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
-18381811
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 18381812 can be divided by 12 positive divisors.
The sum of these divisors (counting 18381812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000110000111101111110100
3
Ternary
1021120220002212
4
Quaternary
1012013233310
5
Quinary
14201204222
6
Senary
1453552552
8
Octal
106075764
10
Decimal
18381812
12
Duodecimal
61a5758
16
Hexadecimal
1187bf4
20
Vigesimal
5eheac
36
Base36
axzhw
md5
827a29a93f7e067771a47730ccdfc52b
sha1
9688edddd20cb9fee024dc25aa21aa21e8ecadf0
sha256
1a69bf3a2399d88fcaed949c37abde77a3486908a221604c8d26c7daee0c1242
sha512
62ab41b0fee8554eb69b2672ace7c7d8357fe42f9c2fc242fca32e5435c270dff9ec04c54d6f9a2ea3dfd5c2409b1b931a198378af44ebe049e9b484495a203c
ripemd-160
b986f6eef209bb997da9c71f7a099a328130933f
Diameter
36763624
Circumference
115496331.07774
Area
1.0615159222804E+15
Volume
2.6016781491152E+22
Surface area
4.2460636891215E+15
Circumference
115496331.07774
Perimeter
73527248
Area
337891012403344
Diagonal
25995807.831393
Surface area
2027346074420064
Volume
6.2110490664879E+21
Space diagonal
31838232.319179
Perimeter
55145436
Area
1.4631110022587E+14
Altitude
15919116.15959
Surface area
1.4631110022587E+14
Volume
7.3197915219933E+20
Height
8665269.2771308