78385909 is an odd 8-digits composite number following 78385908
and preceding 78385910 . In scientific notation, it is written as 7.8385909 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 64266576 positive integers (up to 78385909) that are relatively prime to 78385909.
78385909 has 8 divisors, whose sum is 93479040
The reverse of 78385909 is 90958387
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
seventy-eight million three hundred eighty-five thousand nine hundred nine
Scientific notation
7.8385909 × 10^7
Engineering notation
7.8385909 × 10^6
Prime Factorization
7 × 23 × 486869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78385909
Product of the distinct prime numbers
The prime factorization of 78385909 is 7 × 23 × 486869.
Since it has a total of 3 prime factors.
9 , 7 , 36 , 64 , 251 , 289 , 6191 , 6206 , 94209 , 78861 , 269434 , 641692 , 6468184 , 617036 , 90223058 , 97694870 , 309403393 , 37538200 , 7037251574 , 2744605910
n×2
156771818
n×3
235157727
n×4
313543636
n×5
391929545
n÷2
39192954.5
n÷3
26128636.333333
n÷3
19596477.25
n÷5
15677181.8
n2
6144350729756281
n3
4.8163051716676E+23
n4
3.7753045890257E+31
n5
2.9593068196265E+39
2 √n
8853.5817045984
3 √n
427.96934920398
4 √n
94.093473230604
5 √n
37.918190122275
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78385908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78385909 can be divided by 8 positive divisors.
The sum of these divisors (counting 78385909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011000001001011110101
3
Ternary
12110111102020211
4
Quaternary
10223001023311
5
Quinary
130031322114
6
Senary
11440025421
8
Octal
453011365
10
Decimal
78385909
12
Duodecimal
22302271
16
Hexadecimal
4ac12f5
20
Vigesimal
149i4f9
36
Base36
1ao2yd
md5
4e17196f74a6188e1e65acaf2cd4a821
sha1
aa6cac84102094137af1baec3a014e8b4a774c15
sha256
c5adcafb6b7c6340f6172d3e7ef3232fcba7ab608093a481b1f7ea9d6602e84c
sha512
c10740bbc77a8cdd1e31d34dc985ef6a0621fe913b00072b8b05ae968383a9899c7565db075e102c8a94881c9978cddcb831689d967fe53c0ce4514ddcb25189
ripemd-160
54993be56f084544322d21dd6d78a3627669d11e
Diameter
156771818
Circumference
492513191.71872
Area
1.9303047113681E+16
Volume
2.0174491926343E+24
Surface area
7.7212188454726E+16
Circumference
492513191.71872
Perimeter
313543636
Area
6144350729756281
Diagonal
110854415.60674
Surface area
36866104378537686
Volume
4.8163051716676E+23
Space diagonal
135768376.98547
Perimeter
235157727
Area
2.6605819108652E+15
Altitude
67884188.492735
Surface area
2.6605819108652E+15
Volume
5.6760700785833E+22
Height
36951471.868914