18668841 is an odd 8-digits composite number following 18668840
and preceding 18668842 . In scientific notation, it is written as 1.8668841 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12445892 positive integers (up to 18668841) that are relatively prime to 18668841.
18668841 has 4 divisors, whose sum is 24891792
The reverse of 18668841 is 14886681
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million six hundred sixty-eight thousand eight hundred forty-one
Scientific notation
1.8668841 × 10^7
Engineering notation
1.8668841 × 10^6
Prime Factorization
3 × 6222947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18668841
Product of the distinct prime numbers
The prime factorization of 18668841 is 3 × 6222947.
Since it has a total of 2 prime factors.
8 , 10 , 11 , 39 , 216 , 663 , 3621 , 5875 , 54787 , 37800 , 702470 , 3025 , 8863289 , 4527250 , 89534226 , 16935060 , 389118301 , 624561872 , 4998902990 , 1909330044
n×2
37337682
n×3
56006523
n×4
74675364
n×5
93344205
n÷2
9334420.5
n÷3
6222947
n÷3
4667210.25
n÷5
3733768.2
n2
348525624283281
n3
6.5065694641703E+21
n4
1.2147011078205E+29
n5
2.2677061844425E+36
2 √n
4320.7454217993
3 √n
265.28077988454
4 √n
65.732377271778
5 √n
28.459251352938
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
-18668840
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 18668841 can be divided by 4 positive divisors.
The sum of these divisors (counting 18668841) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111001101110100101001
3
Ternary
1022010110211120
4
Quaternary
1013031310221
5
Quinary
14234400331
6
Senary
1504045453
8
Octal
107156451
10
Decimal
18668841
12
Duodecimal
6303889
16
Hexadecimal
11cdd29
20
Vigesimal
5gdc21
36
Base36
b44yx
md5
c93be1fa3053c9fbd02c57e4c1199ab6
sha1
183e58afd93ef47a323c6eb2e8869a9af3e75400
sha256
9d604a1dd532efd1c148818a9600beee4989b068b23310b2a44162078f15ca39
sha512
5ac2a2da3d40fc10024e4581d30a41f924d150d4a0d2c9f1060b4f11764eff018f076b1fdb6bceccc15becdce08778ebbb28b552050732878c7f3b310f91abe3
ripemd-160
be8cbb9fc6e521797ae2a942b5f9ef701da74290
Diameter
37337682
Circumference
117299787.47327
Area
1.0949255408362E+15
Volume
2.7254654438279E+22
Surface area
4.3797021633446E+15
Circumference
117299787.47327
Perimeter
74675364
Area
348525624283281
Diagonal
26401728.135987
Surface area
2091153745699686
Volume
6.5065694641703E+21
Space diagonal
32335381.130425
Perimeter
56006523
Area
1.5091602224958E+14
Altitude
16167690.565212
Surface area
1.5091602224958E+14
Volume
7.6680656506269E+20
Height
8800576.045329