18085691 is an odd 8-digits composite number following 18085690
and preceding 18085692 . In scientific notation, it is written as 1.8085691 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 16694472 positive integers (up to 18085691) that are relatively prime to 18085691.
18085691 has 4 divisors, whose sum is 19476912
The reverse of 18085691 is 19658081
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million eighty-five thousand six hundred ninety-one
Scientific notation
1.8085691 × 10^7
Engineering notation
1.8085691 × 10^6
Prime Factorization
13 × 1391207
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18085691
Product of the distinct prime numbers
The prime factorization of 18085691 is 13 × 1391207.
Since it has a total of 2 prime factors.
5 , 3 , 62 , 95 , 224 , 85 , 2413 , 1186 , 2397 , 96537 , 295785 , 572148 , 258653 , 4787100 , 48587654 , 69005681 , 813421325 , 516104000 , 1764118178 , 3755198019
n×2
36171382
n×3
54257073
n×4
72342764
n×5
90428455
n÷2
9042845.5
n÷3
6028563.6666667
n÷3
4521422.75
n÷5
3617138.2
n2
327092218947481
n3
5.9156888003885E+21
n4
1.0698931969599E+29
n5
1.9349757763218E+36
2 √n
4252.7274777488
3 √n
262.48935890349
4 √n
65.212939496306
5 √n
28.279193612708
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
-18085690
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 18085691 can be divided by 4 positive divisors.
The sum of these divisors (counting 18085691) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100111111011100111011
3
Ternary
1021000211220102
4
Quaternary
1010333130323
5
Quinary
14112220231
6
Senary
1443350015
8
Octal
104773473
10
Decimal
18085691
12
Duodecimal
608230b
16
Hexadecimal
113f73b
20
Vigesimal
5d0e4b
36
Base36
arn0b
md5
c180a883c0144ce63bc18a62af223305
sha1
78b5f1fb23f5ccbeb6d804af2aed1e1768a03b19
sha256
1d9d3f8a2839b47de4ac3d129206293c65a03ae3a7f7e6ec759b4761785ff3a0
sha512
84b320a67c8d41624aeb42c35b583aa6adc22a224801b294da5fbf0187a7b5a86f2e23f3a6380b272475371fe37dcc957f022ea460f61617caf669fb44ff722a
ripemd-160
c3778a1ec304036a6f5929c0e5a3afe77ec2ff82
Diameter
36171382
Circumference
113635747.96139
Area
1.0275905120918E+15
Volume
2.4779579301632E+22
Surface area
4.1103620483672E+15
Circumference
113635747.96139
Perimeter
72342764
Area
327092218947481
Diagonal
25577029.497089
Surface area
1962553313684886
Volume
5.9156888003885E+21
Space diagonal
31325335.701991
Perimeter
54257073
Area
1.4163508549437E+14
Altitude
15662667.850996
Surface area
1.4163508549437E+14
Volume
6.97170611024E+20
Height
8525676.4990297