686989 is an odd 6-digits prime number following 686988
and preceding 686990 . In scientific notation, it is written as 6.86989 × 10^5.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 686988 positive integers (up to 686989) that are relatively prime to 686989.
686989 has 2 divisors, whose sum is 686990
The reverse of 686989 is 989686
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 46
Digital Root 1
Name
six hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
6.86989 × 10^5
Engineering notation
6.86989 × 10^3
Prime Factorization
686989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
686989
Product of the distinct prime numbers
The prime factorization of 686989 is 686989.
Since it has a total of 1 prime factors.
10 , 10 , 41 , 16 , 484 , 361 , 6596 , 5211 , 4402 , 1256 , 630737 , 726508 , 7844788 , 2372543 , 38349641 , 12984114 , 833451836 , 1736748 , 543671705 , 8256722722
n×2
1373978
n×3
2060967
n×4
2747956
n×5
3434945
n÷2
343494.5
n÷3
228996.33333333
n÷3
171747.25
n÷5
137397.8
n2
471953886121
n3
324227128272379669
n4
2.2274047062471E+23
n5
1.53020253174E+29
2 √n
828.84799571453
3 √n
88.236836199628
4 √n
28.789720313239
5 √n
14.702458311625
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
686990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
343495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
828.84859896123
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999970887495
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 686989 can be divided by 2 positive divisors.
The sum of these divisors (counting 686989) is 686990, the average is 343495.
Base
System
Value
2
Binary
10100111101110001101
3
Ternary
1021220101001
4
Quaternary
2213232031
5
Quinary
133440424
6
Senary
22420301
8
Octal
2475615
10
Decimal
686989
12
Duodecimal
291691
16
Hexadecimal
a7b8d
20
Vigesimal
45h99
36
Base36
eq31
md5
441abdba1f231d400129a8a6ee131fd0
sha1
c52dee713982f96798af9a9d6bb23af9d54f4fa5
sha256
0f0b9efd3e1c4a6b39e1c4dedc46d9608d1bc0c86369b16d632b8dc26543542c
sha512
ead4cd73940e8f841f43e6f71a376a9b3f8c7f4b8a6a02d0b5a9cf7f345eff32c8f9fcc98b7f9c4b2e5f712f20e8d54e3909988d4247522fc4d87ef852fa61fa
ripemd-160
d8e1c7a04a5b173753a1dbcd2cbc1ab022835590
Diameter
1373978
Circumference
4316479.190994
Area
1482686861470.9
Volume
1.3581194190334E+18
Surface area
5930747445883.5
Circumference
4316479.190994
Perimeter
2747956
Area
471953886121
Diagonal
971549.16100113
Surface area
2831723316726
Volume
324227128272379669
Space diagonal
1189899.8522409
Perimeter
2060967
Area
204362027397.79
Altitude
594949.92612047
Surface area
204362027397.79
Volume
3.8210533507673E+16
Height
323849.72033371