687428 is an even 6-digits composite number following 687427
and preceding 687429 . In scientific notation, it is written as 6.87428 × 10^5.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 294600 positive integers (up to 687428) that are relatively prime to 687428.
687428 has 12 divisors, whose sum is 1374912
The reverse of 687428 is 824786
Previous prime number is 7
Is Prime? no
Number parity even
Number length 6
Sum of Digits 35
Digital Root 8
Name
six hundred eighty-seven thousand four hundred twenty-eight
Scientific notation
6.87428 × 10^5
Engineering notation
6.87428 × 10^3
Prime Factorization
2 × 2 × 7 × 24551
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
343714
Product of the distinct prime numbers
The prime factorization of 687428 is 2 × 2 × 7 × 24551.
Since it has a total of 4 prime factors.
3 , 10 , 56 , 15 , 753 , 855 , 5548 , 2287 , 22478 , 46769 , 43957 , 354384 , 7362248 , 2593772 , 43872338 , 33250524 , 307368423 , 749379990 , 5719609569 , 4733377274
n×2
1374856
n×3
2062284
n×4
2749712
n×5
3437140
n÷2
343714
n÷3
229142.66666667
n÷3
171857
n÷5
137485.6
n2
472557255184
n3
324849088816626752
n4
2.2331035942704E+23
n5
1.5350979376021E+29
2 √n
829.11277881842
3 √n
88.255627244315
4 √n
28.794318516305
5 √n
14.704336865733
1 , 2 , 4 , 7 , 14 , 28 , 24551 , 49102 , 98204 , 171857 , 343714 , 687428
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-687427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 687428 can be divided by 12 positive divisors.
The sum of these divisors (counting 687428) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10100111110101000100
3
Ternary
1021220222022
4
Quaternary
2213311010
5
Quinary
133444203
6
Senary
22422312
8
Octal
2476504
10
Decimal
687428
12
Duodecimal
291998
16
Hexadecimal
a7d44
20
Vigesimal
45ib8
36
Base36
eqf8
md5
bfcfeeba31d6c5cd993ea1ba259ecd98
sha1
221ac68bcc30316f3b659ce5e4c51890fd6d79a2
sha256
aeed2a63623476f92eca0b60d33a7f010355fd42681e1335a864e51a0b4617c6
sha512
f0e4adfc98f5fa148cf94b3caf13fa058101a2b7a412aa5da22b756a137af2eef5caaa1d5d44fa9ea4bb2ebca555784dc3004cdfc1e18273eefbf8734e3cc398
ripemd-160
c16aa70e57aefffd1eb579e85f38ce775e96b2d8
Diameter
1374856
Circumference
4319237.5093438
Area
1484582401286.6
Volume
1.3607246812689E+18
Surface area
5938329605146.4
Circumference
4319237.5093438
Perimeter
2749712
Area
472557255184
Diagonal
972170.00075501
Surface area
2835343531104
Volume
324849088816626752
Space diagonal
1190660.2225455
Perimeter
2062284
Area
204623293865.99
Altitude
595330.11127273
Surface area
204623293865.99
Volume
3.8283832260751E+16
Height
324056.66691834