18081613 is an odd 8-digits composite number following 18081612
and preceding 18081614 . In scientific notation, it is written as 1.8081613 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16411680 positive integers (up to 18081613) that are relatively prime to 18081613.
18081613 has 8 divisors, whose sum is 19756800
The reverse of 18081613 is 31618081
Previous prime number is 1049
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million eighty-one thousand six hundred thirteen
Scientific notation
1.8081613 × 10^7
Engineering notation
1.8081613 × 10^6
Prime Factorization
11 × 1049 × 1567
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18081613
Product of the distinct prime numbers
The prime factorization of 18081613 is 11 × 1049 × 1567.
Since it has a total of 3 prime factors.
10 , 8 , 7 , 19 , 917 , 743 , 6321 , 2379 , 54418 , 39132 , 999036 , 819180 , 2792178 , 9129450 , 89443025 , 33407340 , 968846783 , 308668337 , 7160869415 , 1347599566
n×2
36163226
n×3
54244839
n×4
72326452
n×5
90408065
n÷2
9040806.5
n÷3
6027204.3333333
n÷3
4520403.25
n÷5
3616322.6
n2
326944728681769
n3
5.9116880564137E+21
n4
1.068928556128E+29
n5
1.9327952476554E+36
2 √n
4252.2479937087
3 √n
262.46962853451
4 √n
65.209263097422
5 √n
28.277918207148
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
-18081612
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 18081613 can be divided by 8 positive divisors.
The sum of these divisors (counting 18081613) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000100111110011101001101
3
Ternary
1021000122022101
4
Quaternary
1010332131031
5
Quinary
14112102423
6
Senary
1443315101
8
Octal
104763515
10
Decimal
18081613
12
Duodecimal
607ba91
16
Hexadecimal
113e74d
20
Vigesimal
5d040d
36
Base36
arjv1
md5
e4456cca0b81eed430b1a43095c19122
sha1
4e39c025b868dd04ed00847ce9f90d5d8a61190d
sha256
2d4388546dd4bf9b2f77d8a743c20f1e47e398c961a24e18a568554ff35b6098
sha512
d0dc4b86354c4f657a517bcbb6550d1316c88d7a432327abef536c1a49e41fbe5d792a21d1c7af2fb9efb7252368c82667a4accd9d342424405f4b1ff71c0162
ripemd-160
09cab24706e595b810d774583afee5a428bcb303
Diameter
36163226
Circumference
113610125.13171
Area
1.0271271577566E+15
Volume
2.4762821024459E+22
Surface area
4.1085086310262E+15
Circumference
113610125.13171
Perimeter
72326452
Area
326944728681769
Diagonal
25571262.334182
Surface area
1961668372090614
Volume
5.9116880564137E+21
Space diagonal
31318272.398798
Perimeter
54244839
Area
1.4157122033591E+14
Altitude
15659136.199399
Surface area
1.4157122033591E+14
Volume
6.9669911882495E+20
Height
8523754.1113939