16668081 is an odd 8-digits composite number following 16668080
and preceding 16668082 . In scientific notation, it is written as 1.6668081 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 11112048 positive integers (up to 16668081) that are relatively prime to 16668081.
16668081 has 4 divisors, whose sum is 18520100
The reverse of 16668081 is 18086661
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixteen million six hundred sixty-eight thousand eighty-one
Scientific notation
1.6668081 × 10^7
Engineering notation
1.6668081 × 10^6
Prime Factorization
9 × 1852009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
16668081
Product of the distinct prime numbers
The prime factorization of 16668081 is 9 × 1852009.
Since it has a total of 2 prime factors.
4 , 10 , 71 , 74 , 475 , 581 , 3663 , 4944 , 331 , 74172 , 609033 , 761034 , 4729905 , 836886 , 90198679 , 28064344 , 711109092 , 192618612 , 7938008404 , 4652276551
n×2
33336162
n×3
50004243
n×4
66672324
n×5
83340405
n÷2
8334040.5
n÷3
5556027
n÷3
4167020.25
n÷5
3333616.2
n2
277824924222561
n3
4.6308083407605E+21
n4
7.7186688519272E+28
n5
1.286553976361E+36
2 √n
4082.6561207136
3 √n
255.44370270664
4 √n
63.895665899289
5 √n
27.821280854759
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
-16668080
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 16668081 can be divided by 4 positive divisors.
The sum of these divisors (counting 16668081) is 1, the average is 0.25.
Base
System
Value
2
Binary
111111100101010110110001
3
Ternary
1011100211022100
4
Quaternary
333211112301
5
Quinary
13231334311
6
Senary
1353131013
8
Octal
77452661
10
Decimal
16668081
12
Duodecimal
56b9a69
16
Hexadecimal
fe55b1
20
Vigesimal
543a41
36
Base36
9x969
md5
f219d19347a19d50a3f610051eb7e7b1
sha1
69b07bfd393185e8b6cdcc46fb6e3f2826fc5d87
sha256
de773e0e2464fcc40c17d3b9a327dd3cf5f4a4f4f93915c7b10b4d10c4f0e66f
sha512
a65d09cdc8db31dfc4470a248497a4edad66003dca3a3fa309006810d376cf565179ceb6cb9c980f773d39c2aea4549e1c6c0c8c2a1e1aaca32054de4947ca2b
ripemd-160
0a718505f6f3d13be64d96788ebed615d80510a4
Diameter
33336162
Circumference
104728641.63808
Area
8.7281274092174E+14
Volume
1.9397484618021E+22
Surface area
3.491250963687E+15
Circumference
104728641.63808
Perimeter
66672324
Area
277824924222561
Diagonal
23572226.208933
Surface area
1666949545335366
Volume
4.6308083407605E+21
Space diagonal
28869963.156673
Perimeter
50004243
Area
1.2030172109061E+14
Altitude
14434981.578337
Surface area
1.2030172109061E+14
Volume
5.4574599668783E+20
Height
7857408.7363111