16661381 is an odd 8-digits composite number following 16661380
and preceding 16661382 . In scientific notation, it is written as 1.6661381 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 15146700 positive integers (up to 16661381) that are relatively prime to 16661381.
16661381 has 4 divisors, whose sum is 18176064
The reverse of 16661381 is 18316661
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
sixteen million six hundred sixty-one thousand three hundred eighty-one
Scientific notation
1.6661381 × 10^7
Engineering notation
1.6661381 × 10^6
Prime Factorization
11 × 1514671
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
16661381
Product of the distinct prime numbers
The prime factorization of 16661381 is 11 × 1514671.
Since it has a total of 2 prime factors.
6 , 6 , 29 , 35 , 554 , 987 , 8724 , 7180 , 79650 , 81516 , 662695 , 331768 , 6233464 , 6601975 , 34896949 , 12512617 , 315350161 , 212951686 , 2977707792 , 1085591070
n×2
33322762
n×3
49984143
n×4
66645524
n×5
83306905
n÷2
8330690.5
n÷3
5553793.6666667
n÷3
4165345.25
n÷5
3332276.2
n2
277601616827161
n3
4.6252263041733E+21
n4
7.7062657665054E+28
n5
1.28397030023E+36
2 √n
4081.8354939904
3 √n
255.40947156795
4 √n
63.889243961644
5 √n
27.819043853872
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
-16661380
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 16661381 can be divided by 4 positive divisors.
The sum of these divisors (counting 16661381) is 1, the average is 0.25.
Base
System
Value
2
Binary
111111100011101110000101
3
Ternary
1011100111010012
4
Quaternary
333203232011
5
Quinary
13231131011
6
Senary
1353040005
8
Octal
77435605
10
Decimal
16661381
12
Duodecimal
56b6005
16
Hexadecimal
fe3b85
20
Vigesimal
542d91
36
Base36
9x405
md5
8524418ea01ab804d805b84829c9972e
sha1
0d8c94a0e000c05a911bdfc8f583c36313f5c195
sha256
fdb61b4dc22766d8276dd575fd5033d6af08887c1f03c5cf03363cca981cd765
sha512
87eb60976adade451165f6e353a7072fde9d14a7c1797807d81cbee782d3a4f61bd867faa625559230f8befce7169b5cc7a2a8d7bc093f0495510852e6147f3c
ripemd-160
195ec38ba9bdd903002d89917fea69eb0e8a1e65
Diameter
33322762
Circumference
104686544.29652
Area
8.7211120004886E+14
Volume
1.9374102637842E+22
Surface area
3.4884448001954E+15
Circumference
104686544.29652
Perimeter
66645524
Area
277601616827161
Diagonal
23562750.978065
Surface area
1665609700962966
Volume
4.6252263041733E+21
Space diagonal
28858358.416263
Perimeter
49984143
Area
1.2020502615198E+14
Altitude
14429179.208131
Surface area
1.2020502615198E+14
Volume
5.4508814736723E+20
Height
7854250.3260218