18081305 is an odd 8-digits composite number following 18081304
and preceding 18081306 . In scientific notation, it is written as 1.8081305 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 13104000 positive integers (up to 18081305) that are relatively prime to 18081305.
18081305 has 8 divisors, whose sum is 18474624
The reverse of 18081305 is 50318081
Previous prime number is 521
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighteen million eighty-one thousand three hundred five
Scientific notation
1.8081305 × 10^7
Engineering notation
1.8081305 × 10^6
Prime Factorization
55 × 521 × 631
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18081305
Product of the distinct prime numbers
The prime factorization of 18081305 is 55 × 521 × 631.
Since it has a total of 3 prime factors.
2 , 1 , 85 , 1 , 785 , 832 , 977 , 288 , 9008 , 43517 , 882506 , 912929 , 363076 , 8993933 , 96004013 , 95050122 , 47569312 , 987213158 , 6296432423 , 850529483
n×2
36162610
n×3
54243915
n×4
72325220
n×5
90406525
n÷2
9040652.5
n÷3
6027101.6666667
n÷3
4520326.25
n÷5
3616261
n2
326933590503025
n3
5.9113859646303E+21
n4
1.068855725992E+29
n5
1.9326306382658E+36
2 √n
4252.2117774165
3 √n
262.46813823412
4 √n
65.208985403981
5 √n
28.277821869967
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
-18081304
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 18081305 can be divided by 8 positive divisors.
The sum of these divisors (counting 18081305) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000100111110011000011001
3
Ternary
1021000121212222
4
Quaternary
1010332120121
5
Quinary
14112100210
6
Senary
1443313425
8
Octal
104763031
10
Decimal
18081305
12
Duodecimal
607b875
16
Hexadecimal
113e619
20
Vigesimal
5d0355
36
Base36
arjmh
md5
2af2d02185a3f241f781cf42bb4d6bfe
sha1
8febcfff2de3e529756905148414f90d5dac4ce6
sha256
e80671fdab6478e8723696b0c49336cb42def32e4273a5a4cd564e95cbb9c437
sha512
4d6f095fef9cda0bc3e51f5b0826b88a4b204bcdeba91876b32d0e83a7baa9c237c2cf2d0504c2a23b8e87bfe6ab261b87ae4536cc77b87133e2e42f00778bac
ripemd-160
13250ab91a2a6242441c4a5d9f5b56ac9368bd3e
Diameter
36162610
Circumference
113608189.91063
Area
1.027092166136E+15
Volume
2.4761555625355E+22
Surface area
4.1083686645441E+15
Circumference
113608189.91063
Perimeter
72325220
Area
326933590503025
Diagonal
25570826.756404
Surface area
1961601543018150
Volume
5.9113859646303E+21
Space diagonal
31317738.927149
Perimeter
54243915
Area
1.4156639736304E+14
Altitude
15658869.463575
Surface area
1.4156639736304E+14
Volume
6.9666351696684E+20
Height
8523608.9188015