78406985 is an odd 8-digits composite number following 78406984
and preceding 78406986 . In scientific notation, it is written as 7.8406985 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 62406400 positive integers (up to 78406985) that are relatively prime to 78406985.
78406985 has 8 divisors, whose sum is 94567176
The reverse of 78406985 is 58960487
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-eight million four hundred six thousand nine hundred eighty-five
Scientific notation
7.8406985 × 10^7
Engineering notation
7.8406985 × 10^6
Prime Factorization
5 × 197 × 79601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78406985
Product of the distinct prime numbers
The prime factorization of 78406985 is 5 × 197 × 79601.
Since it has a total of 3 prime factors.
7 , 5 , 86 , 23 , 782 , 583 , 1049 , 4156 , 91698 , 66911 , 675992 , 571238 , 9022843 , 3132555 , 2798656 , 12449019 , 120174367 , 117908161 , 8000119249 , 8176125862
n×2
156813970
n×3
235220955
n×4
313627940
n×5
392034925
n÷2
39203492.5
n÷3
26135661.666667
n÷3
19601746.25
n÷5
15681397
n2
6147655296790225
n3
4.820191166406E+23
n4
3.7793665648153E+31
n5
2.9632873755697E+39
2 √n
8854.7718773552
3 √n
428.00770249917
4 √n
94.09979743525
5 √n
37.920228952593
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
-78406984
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 78406985 can be divided by 8 positive divisors.
The sum of these divisors (counting 78406985) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011000110010101001001
3
Ternary
12110112111011102
4
Quaternary
10223012111021
5
Quinary
130033010420
6
Senary
11440311145
8
Octal
453062511
10
Decimal
78406985
12
Duodecimal
223124b5
16
Hexadecimal
4ac6549
20
Vigesimal
14a0h95
36
Base36
1aoj7t
md5
73516e1449119a05b24ec23abfd12345
sha1
485c3dcfe1270cc0761b611243c1273ae28657be
sha256
a0e42bcdb82bcf1076c0f8aab08c6e2ed8ac475651ffae5019ff0f7037e84e0a
sha512
d190c563bf47c26647400b74da8000d5464dc495460b858760e0d2aa3d11dbe2e033a1d9a30f31fb3fd5278cf9b7624debf2190103305aedda035ad8ac8b4887
ripemd-160
4890cf0581841943767a053380433ec63a85e9b8
Diameter
156813970
Circumference
492645616.13225
Area
1.9313428717199E+16
Volume
2.0190769543039E+24
Surface area
7.7253714868794E+16
Circumference
492645616.13225
Perimeter
313627940
Area
6147655296790225
Diagonal
110884221.57178
Surface area
36885931780741350
Volume
4.820191166406E+23
Space diagonal
135804881.68829
Perimeter
235220955
Area
2.6620128303651E+15
Altitude
67902440.844145
Surface area
2.6620128303651E+15
Volume
5.680649767302E+22
Height
36961407.190595