18406985 is an odd 8-digits composite number following 18406984
and preceding 18406986 . In scientific notation, it is written as 1.8406985 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 14695344 positive integers (up to 18406985) that are relatively prime to 18406985.
18406985 has 8 divisors, whose sum is 22133760
The reverse of 18406985 is 58960481
Previous prime number is 523
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighteen million four hundred six thousand nine hundred eighty-five
Scientific notation
1.8406985 × 10^7
Engineering notation
1.8406985 × 10^6
Prime Factorization
5 × 523 × 7039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18406985
Product of the distinct prime numbers
The prime factorization of 18406985 is 5 × 523 × 7039.
Since it has a total of 3 prime factors.
4 , 2 , 64 , 81 , 477 , 386 , 6483 , 6812 , 1948 , 38778 , 634982 , 241359 , 9350359 , 8946242 , 64651251 , 64233383 , 256051020 , 5743130 , 3308277851 , 6350437523
n×2
36813970
n×3
55220955
n×4
73627940
n×5
92034925
n÷2
9203492.5
n÷3
6135661.6666667
n÷3
4601746.25
n÷5
3681397
n2
338817096790225
n3
6.2366012183612E+21
n4
1.1479702507736E+29
n5
2.1130671186435E+36
2 √n
4290.3362339099
3 √n
264.03462680947
4 √n
65.500658270813
5 √n
28.3789636463
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
-18406984
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 18406985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18406985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001101111001001001
3
Ternary
1021122011122012
4
Quaternary
1012031321021
5
Quinary
14203010420
6
Senary
1454305305
8
Octal
106157111
10
Decimal
18406985
12
Duodecimal
61b8235
16
Hexadecimal
118de49
20
Vigesimal
5f0h95
36
Base36
ayix5
md5
516e56d643e48108df511dd74d31e4f0
sha1
5a6061c88533ee8982bad3ad6ea06fd4661d5aa5
sha256
11987cda9cf80ad020ae997f2eb97ee5213a78b897ae8c808bde71897b7ef432
sha512
b798a3ebbc5a7c57c8a84b86c0e2d46d3cf932898359ab6813ed5610e762bde9515138779b6307b180bd803e40450162e18c3d7b4484c99a3adbd79c3772e957
ripemd-160
c81e9979e572502ac4f8d4b09d76cf36fa103d37
Diameter
36813970
Circumference
115654497.70148
Area
1.0644253021868E+15
Volume
2.612381409463E+22
Surface area
4.2577012087472E+15
Circumference
115654497.70148
Perimeter
73627940
Area
338817096790225
Diagonal
26031407.829398
Surface area
2032902580741350
Volume
6.2366012183612E+21
Space diagonal
31881833.234158
Perimeter
55220955
Area
1.4671210652841E+14
Altitude
15940916.617079
Surface area
1.4671210652841E+14
Volume
7.3499050217658E+20
Height
8677135.9431327