18168081 is an odd 8-digits composite number following 18168080
and preceding 18168082 . In scientific notation, it is written as 1.8168081 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 12112052 positive integers (up to 18168081) that are relatively prime to 18168081.
18168081 has 4 divisors, whose sum is 24224112
The reverse of 18168081 is 18086181
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million one hundred sixty-eight thousand eighty-one
Scientific notation
1.8168081 × 10^7
Engineering notation
1.8168081 × 10^6
Prime Factorization
3 × 6056027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18168081
Product of the distinct prime numbers
The prime factorization of 18168081 is 3 × 6056027.
Since it has a total of 2 prime factors.
6 , 2 , 32 , 45 , 224 , 50 , 8609 , 170 , 25505 , 48154 , 997822 , 891685 , 5469549 , 7038741 , 36211272 , 19997851 , 274319451 , 417042222 , 422731852 , 9057460258
n×2
36336162
n×3
54504243
n×4
72672324
n×5
90840405
n÷2
9084040.5
n÷3
6056027
n÷3
4542020.25
n÷5
3633616.2
n2
330079167222561
n3
5.996905046512E+21
n4
1.0895225663434E+29
n5
1.9794534236655E+36
2 √n
4262.4031953817
3 √n
262.88734832417
4 √n
65.28708291371
5 √n
28.304912162378
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18168080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18168081 can be divided by 4 positive divisors.
The sum of these divisors (counting 18168081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101010011100100010001
3
Ternary
1021012000220220
4
Quaternary
1011103210101
5
Quinary
14122334311
6
Senary
1445223253
8
Octal
105234421
10
Decimal
18168081
12
Duodecimal
6101b29
16
Hexadecimal
1153911
20
Vigesimal
5db041
36
Base36
atekx
md5
a8d6e81e7ed376e22159fee6878174f8
sha1
af91b723efddd9b0a4c35608348c50ea3d14e92d
sha256
6f979c39b66dc91dfe34d3dd622e1fcefd257d66d2e2d1108c0211c48eae1472
sha512
2c406c5d5d9ae25825e99c26321f25659bbdd2aebf518cc34a66406818fc6ab22bb1e81f9a7bc48a676663f9cd80645f7663d4c21bc2ea52c62c89654b6254b2
ripemd-160
6df3732cdb82a3d76a2c6c9f40f90c860696ada7
Diameter
36336162
Circumference
114153419.59885
Area
1.0369742868494E+15
Volume
2.5119777117864E+22
Surface area
4.1478971473977E+15
Circumference
114153419.59885
Perimeter
72672324
Area
330079167222561
Diagonal
25693546.552493
Surface area
1980475003335366
Volume
5.996905046512E+21
Space diagonal
31468039.368027
Perimeter
54504243
Area
1.4292847203737E+14
Altitude
15734019.684013
Surface area
1.4292847203737E+14
Volume
7.0674203742008E+20
Height
8564515.5174976