18406945 is an odd 8-digits composite number following 18406944
and preceding 18406946 . In scientific notation, it is written as 1.8406945 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 14327424 positive integers (up to 18406945) that are relatively prime to 18406945.
18406945 has 8 divisors, whose sum is 22685544
The reverse of 18406945 is 54960481
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighteen million four hundred six thousand nine hundred forty-five
Scientific notation
1.8406945 × 10^7
Engineering notation
1.8406945 × 10^6
Prime Factorization
5 × 37 × 99497
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18406945
Product of the distinct prime numbers
The prime factorization of 18406945 is 5 × 37 × 99497.
Since it has a total of 3 prime factors.
9 , 1 , 53 , 51 , 468 , 522 , 5689 , 7 , 21217 , 70501 , 585364 , 787995 , 9905011 , 795063 , 55112224 , 75806091 , 457061583 , 672541987 , 201164404 , 3596523896
n×2
36813890
n×3
55220835
n×4
73627780
n×5
92034725
n÷2
9203472.5
n÷3
6135648.3333333
n÷3
4601736.25
n÷5
3681389
n2
338815624233025
n3
6.236560560398E+21
n4
1.1479602722441E+29
n5
2.1130441593383E+36
2 √n
4290.331572268
3 √n
264.03443555249
4 √n
65.500622686109
5 √n
28.378951312291
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
-18406944
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 18406945 can be divided by 8 positive divisors.
The sum of these divisors (counting 18406945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001101111000100001
3
Ternary
1021122011120201
4
Quaternary
1012031320201
5
Quinary
14203010240
6
Senary
1454305201
8
Octal
106157041
10
Decimal
18406945
12
Duodecimal
61b8201
16
Hexadecimal
118de21
20
Vigesimal
5f0h75
36
Base36
ayiw1
md5
4be9b787f4018fbd41aea91df3bcf484
sha1
3f18dd0223f00779b45ec48a533dc7b74cc71e40
sha256
aeeec1416e0c4b356efc803c7936762a99b89dca0423d8de2c874da4b9838641
sha512
eaf9553524f5dce4af95b133a9768bb4fb822ea9fc380ceaa1fb861d1d2bcfdef749477b05fdbf5d9b1ef087f6a75d7d921a726227b388f0919523024ff235ba
ripemd-160
80d3dfc4d0d6697be12699be564a620dca1f3207
Diameter
36813890
Circumference
115654246.37406
Area
1.0644206760119E+15
Volume
2.6123643786952E+22
Surface area
4.2576827040476E+15
Circumference
115654246.37406
Perimeter
73627780
Area
338815624233025
Diagonal
26031351.260856
Surface area
2032893745398150
Volume
6.236560560398E+21
Space diagonal
31881763.952126
Perimeter
55220835
Area
1.4671146889244E+14
Altitude
15940881.976063
Surface area
1.4671146889244E+14
Volume
7.3498571058966E+20
Height
8677117.0869519