1686989 is an odd 7-digits composite number following 1686988
and preceding 1686990 . In scientific notation, it is written as 1.686989 × 10^6.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 1632540 positive integers (up to 1686989) that are relatively prime to 1686989.
1686989 has 4 divisors, whose sum is 1741440
The reverse of 1686989 is 9896861
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 47
Digital Root 2
Name
one million six hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
1.686989 × 10^6
Engineering notation
1.686989 × 10^6
Prime Factorization
31 × 54419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1686989
Product of the distinct prime numbers
The prime factorization of 1686989 is 31 × 54419.
Since it has a total of 2 prime factors.
7 , 6 , 28 , 35 , 529 , 47 , 5224 , 9379 , 61785 , 3899 , 979484 , 875888 , 7335338 , 2858459 , 64244925 , 62681087 , 271456000 , 48200001 , 9703613945 , 7030014963
n×2
3373978
n×3
5060967
n×4
6747956
n×5
8434945
n÷2
843494.5
n÷3
562329.66666667
n÷3
421747.25
n÷5
337397.8
n2
2845931886121
n3
4801055786635379669
n4
8.0993283004402E+24
n5
1.3663477750231E+31
2 √n
1298.841406793
3 √n
119.04306047052
4 √n
36.039442376277
5 √n
17.596344264265
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
-1686988
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 1686989 can be divided by 4 positive divisors.
The sum of these divisors (counting 1686989) is 1, the average is 0.25.
Base
System
Value
2
Binary
110011011110111001101
3
Ternary
10011201010002
4
Quaternary
12123313031
5
Quinary
412440424
6
Senary
100054045
8
Octal
6336715
10
Decimal
1686989
12
Duodecimal
694325
16
Hexadecimal
19bdcd
20
Vigesimal
aah99
36
Base36
105ot
md5
1a10bb73e932938c4df097bae5897903
sha1
cdfb5aab8a480cc2c2e64b650474e159b4f9fec1
sha256
aaf778d480f8b8a2410eb8ab3d9218d3dcaba667b684f0dfef1589955c93cbf1
sha512
f68edc43509ac0149415b0d725e54ea22fdcfe486a1c3d66aa5e67ae7e7fe548dbd4e5e087263317dfc27b842d390de6c265400266110ccc934e37633038511f
ripemd-160
3f11a362e211c6efd16f4fc47ff0617a79acbbf2
Diameter
3373978
Circumference
10599664.498174
Area
8940758706054.7
Volume
2.0110615451691E+19
Surface area
35763034824219
Circumference
10599664.498174
Perimeter
6747956
Area
2845931886121
Diagonal
2385762.7233742
Surface area
17075591316726
Volume
4801055786635379669
Space diagonal
2921950.6598098
Perimeter
5060967
Area
1232324655410.5
Altitude
1460975.3299049
Surface area
1232324655410.5
Volume
5.6580985059747E+17
Height
795254.24112474