16668891 is an odd 8-digits composite number following 16668890
and preceding 16668892 . In scientific notation, it is written as 1.6668891 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 10458816 positive integers (up to 16668891) that are relatively prime to 16668891.
16668891 has 8 divisors, whose sum is 19610640
The reverse of 16668891 is 19886661
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixteen million six hundred sixty-eight thousand eight hundred ninety-one
Scientific notation
1.6668891 × 10^7
Engineering notation
1.6668891 × 10^6
Prime Factorization
9 × 17 × 108947
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
16668891
Product of the distinct prime numbers
The prime factorization of 16668891 is 9 × 17 × 108947.
Since it has a total of 3 prime factors.
6 , 5 , 31 , 66 , 976 , 982 , 575 , 8682 , 52520 , 86907 , 53536 , 787742 , 4012014 , 6563764 , 92465505 , 26819439 , 713558691 , 954885101 , 7862782472 , 5469977692
n×2
33337782
n×3
50006673
n×4
66675564
n×5
83344455
n÷2
8334445.5
n÷3
5556297
n÷3
4167222.75
n÷5
3333778.2
n2
277851927169881
n3
4.6314834881347E+21
n4
7.7201693432017E+28
n5
1.2868666128337E+36
2 √n
4082.755319634
3 √n
255.44784047646
4 √n
63.89644215161
5 √n
27.821551249407
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
-16668890
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 16668891 can be divided by 8 positive divisors.
The sum of these divisors (counting 16668891) is 1, the average is 0.125.
Base
System
Value
2
Binary
111111100101100011011011
3
Ternary
1011100212102100
4
Quaternary
333211203123
5
Quinary
13231401031
6
Senary
1353134443
8
Octal
77454333
10
Decimal
16668891
12
Duodecimal
56ba423
16
Hexadecimal
fe58db
20
Vigesimal
543c4b
36
Base36
9x9sr
md5
9ee5aed6faf3a23a59f3df1677b3c4d3
sha1
c7036ee0fd2fd5f3968c39229cf46dea26924364
sha256
4dbf526c29a94eec09a98a2c6711145299353cf630fbc3f5b38dec3bc681236f
sha512
3bbb2bc6667bf9045fd42124ad2684467178a4fe1054329f89c654fb8145d877c90d9b15f14db134d0fa17f9134a84ed24db3a1b0e450a6f4e9f6990fa043252
ripemd-160
4cdf7c098c6582ef20c66f7ce41f1e36914787d0
Diameter
33337782
Circumference
104733731.01818
Area
8.7289757318266E+14
Volume
1.9400312668728E+22
Surface area
3.4915902927307E+15
Circumference
104733731.01818
Perimeter
66675564
Area
277851927169881
Diagonal
23573371.721919
Surface area
1667111563019286
Volume
4.6314834881347E+21
Space diagonal
28871366.117828
Perimeter
50006673
Area
1.2031341370979E+14
Altitude
14435683.058914
Surface area
1.2031341370979E+14
Volume
5.4582556356893E+20
Height
7857790.5739729