18394490 is an even 8-digits composite number following 18394489
and preceding 18394491 . In scientific notation, it is written as 1.8394490 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 7357792 positive integers (up to 18394490) that are relatively prime to 18394490.
18394490 has 8 divisors, whose sum is 33110100
The reverse of 18394490 is 09449381
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million three hundred ninety-four thousand four hundred ninety
Scientific notation
1.8394490 × 10^7
Engineering notation
1.8394490 × 10^6
Prime Factorization
2 × 5 × 1839449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18394490
Product of the distinct prime numbers
The prime factorization of 18394490 is 2 × 5 × 1839449.
Since it has a total of 3 prime factors.
8 , 5 , 95 , 94 , 128 , 187 , 2008 , 5014 , 89086 , 83128 , 22888 , 34129 , 8141262 , 4562380 , 79492048 , 62672 , 61598335 , 856831501 , 6967246433 , 5897759072
n×2
36788980
n×3
55183470
n×4
73577960
n×5
91972450
n÷2
9197245
n÷3
6131496.6666667
n÷3
4598622.5
n÷5
3678898
n2
338357262360100
n3
6.2239092789102E+21
n4
1.1448563699182E+29
n5
2.1059049047897E+36
2 √n
4288.8798071291
3 √n
263.97486943216
4 √n
65.489539677181
5 √n
28.375109767218
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
-18394489
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 18394490 can be divided by 8 positive divisors.
The sum of these divisors (counting 18394490) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001010110101111010
3
Ternary
1021121112111102
4
Quaternary
1012022311322
5
Quinary
14202110430
6
Senary
1454131402
8
Octal
106126572
10
Decimal
18394490
12
Duodecimal
61b0b62
16
Hexadecimal
118ad7a
20
Vigesimal
5ej64a
36
Base36
ay9a2
md5
d4967d61c549b437f1b5fcc44078fe91
sha1
eb893820bf01b7c7f3190bdf156567f304d97fa8
sha256
752d4e52edc5c7df87ddd5a3d1b7543cad327b4c59115da52a2d9f808d7794ba
sha512
d3b565f1b2999e8a6df87eaabfc5525dcacee84bd849d11f26e0bce77a786be04b6e56f5054b684b0bc292ae7b3903d7d66d47b2d3429c2e1f20d6e30ac11bd2
ripemd-160
9d56fbb615964b3ea06761f509bdc0954c61e8d1
Diameter
36788980
Circumference
115575989.30106
Area
1.0629806897192E+15
Volume
2.6070650222978E+22
Surface area
4.251922758877E+15
Circumference
115575989.30106
Perimeter
73577960
Area
338357262360100
Diagonal
26013737.230936
Surface area
2030143574160600
Volume
6.2239092789102E+21
Space diagonal
31860191.259318
Perimeter
55183470
Area
1.465129923794E+14
Altitude
15930095.629659
Surface area
1.465129923794E+14
Volume
7.3349474276788E+20
Height
8671245.7436454