678445985 is an odd 9-digits composite number following 678445984
and preceding 678445986 . In scientific notation, it is written as 6.78445985 × 10^8.
The sum of its digits is 56. It has a total of 4 prime factors and 16 positive divisors.
There are 465008256 positive integers (up to 678445985) that are relatively prime to 678445985.
678445985 has 16 divisors, whose sum is 930864000
The reverse of 678445985 is 589544876
Previous prime number is 4099
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 56
Digital Root 2
Name
six hundred seventy-eight million four hundred forty-five thousand nine hundred eighty-five
Scientific notation
6.78445985 × 10^8
Engineering notation
6.78445985 × 10^6
Prime Factorization
5 × 7 × 4099 × 4729
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
678445985
Product of the distinct prime numbers
The prime factorization of 678445985 is 5 × 7 × 4099 × 4729.
Since it has a total of 4 prime factors.
6 , 5 , 70 , 26 , 154 , 36 , 3008 , 9338 , 50142 , 23363 , 551082 , 196600 , 3261608 , 6890152 , 32039253 , 91035782 , 560845618 , 985785414 , 1323682883 , 1061556517
n×2
1356891970
n×3
2035337955
n×4
2713783940
n×5
3392229925
n÷2
339222992.5
n÷3
226148661.66667
n÷3
169611496.25
n÷5
135689197
n2
460288954562620225
n3
3.1228119316286E+26
n4
2.1186592169235E+35
n5
1.437395839305E+44
2 √n
26046.99570008
3 √n
878.69554709131
4 √n
161.39081665349
5 √n
58.385238059475
1 , 5 , 7 , 35 , 4099 , 4729 , 20495 , 23645 , 28693 , 33103 , 143465 , 165515 , 19384171 , 96920855 , 135689197 , 678445985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-678445984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 678445985 can be divided by 16 positive divisors.
The sum of these divisors (counting 678445985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000011100000100001110100001
3
Ternary
1202021121121221002
4
Quaternary
220130010032201
5
Quinary
2342140232420
6
Senary
151153241345
8
Octal
5034041641
10
Decimal
678445985
12
Duodecimal
16b263255
16
Hexadecimal
287043a1
20
Vigesimal
ac05ej5
36
Base36
b7xg9t
md5
d4bd17ee10fb882df376824696d92732
sha1
c9facc2379840fce2d54a16ecb5a29eed5cdc010
sha256
d2cc0560af3207a5c882808def63811fe5a25378b7049a7f98a88596948f204a
sha512
be4e22dfe41c3dfb0732b10ec090ab1c5ec19d3adccf56d217a8a89a5af1f0b3c957148b5ae4cd426414799d91ab72d0b9fec0ee4856883c65e65389de9d641d
ripemd-160
d4661ee4614577120b2a81a7c5ff6da499b76d3d
Diameter
1356891970
Circumference
4262801844.667
Area
1.4460403981825E+18
Volume
1.3080804030596E+27
Surface area
5.7841615927298E+18
Circumference
4262801844.667
Perimeter
2713783940
Area
460288954562620225
Diagonal
959467513.32457
Surface area
2761733727375721350
Volume
3.1228119316286E+26
Space diagonal
1175102916.2111
Perimeter
2035337955
Area
1.9931096386631E+17
Altitude
587551458.10556
Surface area
1.9931096386631E+17
Volume
3.6802691553747E+25
Height
319822504.44152