18085381 is an odd 8-digits prime number following 18085380
and preceding 18085382 . In scientific notation, it is written as 1.8085381 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 18085380 positive integers (up to 18085381) that are relatively prime to 18085381.
18085381 has 2 divisors, whose sum is 18085382
The reverse of 18085381 is 18358081
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million eighty-five thousand three hundred eighty-one
Scientific notation
1.8085381 × 10^7
Engineering notation
1.8085381 × 10^6
Prime Factorization
18085381
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18085381
Product of the distinct prime numbers
The prime factorization of 18085381 is 18085381.
Since it has a total of 1 prime factors.
10 , 9 , 72 , 21 , 58 , 815 , 9083 , 9970 , 4702 , 1720 , 971339 , 350372 , 132911 , 393675 , 61660396 , 45178339 , 333752825 , 60777308 , 8794984213 , 7504121223
n×2
36170762
n×3
54256143
n×4
72341524
n×5
90426905
n÷2
9042690.5
n÷3
6028460.3333333
n÷3
4521345.25
n÷5
3617076.2
n2
327081005915161
n3
5.9153846098389E+21
n4
1.0698198443047E+29
n5
1.9348099485612E+36
2 √n
4252.6910303948
3 √n
262.48785915126
4 √n
65.212660046917
5 √n
28.279096667447
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18085382
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9042691
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4252.6911479674
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998894135
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18085381 can be divided by 2 positive divisors.
The sum of these divisors (counting 18085381) is 18085382, the average is 9042691.
Base
System
Value
2
Binary
1000100111111011000000101
3
Ternary
1021000211110221
4
Quaternary
1010333120011
5
Quinary
14112213011
6
Senary
1443344341
8
Octal
104773005
10
Decimal
18085381
12
Duodecimal
60820b1
16
Hexadecimal
113f605
20
Vigesimal
5d0d91
36
Base36
armrp
md5
242139679fc8b8e118c4b1c2a83c0eb1
sha1
23d5e53edc77eaec6c7bab8355b1fd8bbff32e81
sha256
1ddc07c1bc9e0f65e82e1973547a634b4a9e77a96e20e73a912988eb85de216e
sha512
f07e8d2af7f230e2b673230e8ac76912a95dd4404ab1c2a6b0322368405393572ddf4618d497dda74def1e6662c32c087fd50c1b53672716044a3bb128acc2c0
ripemd-160
6b93c638bffff4303c322690bd27b43d9f03c45d
Diameter
36170762
Circumference
113633800.17394
Area
1.0275552853118E+15
Volume
2.4778305111238E+22
Surface area
4.1102211412473E+15
Circumference
113633800.17394
Perimeter
72341524
Area
327081005915161
Diagonal
25576591.090885
Surface area
1962486035490966
Volume
5.9153846098389E+21
Space diagonal
31324798.766241
Perimeter
54256143
Area
1.4163023010895E+14
Altitude
15662399.38312
Surface area
1.4163023010895E+14
Volume
6.9713476182394E+20
Height
8525530.3636282