78442905 is an odd 8-digits composite number following 78442904
and preceding 78442906 . In scientific notation, it is written as 7.8442905 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 41465088 positive integers (up to 78442905) that are relatively prime to 78442905.
78442905 has 8 divisors, whose sum is 84414720
The reverse of 78442905 is 50924487
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-eight million four hundred forty-two thousand nine hundred five
Scientific notation
7.8442905 × 10^7
Engineering notation
7.8442905 × 10^6
Prime Factorization
15 × 113 × 46279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78442905
Product of the distinct prime numbers
The prime factorization of 78442905 is 15 × 113 × 46279.
Since it has a total of 3 prime factors.
10 , 7 , 38 , 87 , 721 , 592 , 2210 , 7172 , 68897 , 77615 , 834469 , 828734 , 7257231 , 4705924 , 30667599 , 69219608 , 511080405 , 730739450 , 3054412522 , 9251331344
n×2
156885810
n×3
235328715
n×4
313771620
n×5
392214525
n÷2
39221452.5
n÷3
26147635
n÷3
19610726.25
n÷5
15688581
n2
6153289344839025
n3
4.8268189151472E+23
n4
3.7862969761309E+31
n5
2.9700813400043E+39
2 √n
8856.7999299973
3 √n
428.07305249972
4 √n
94.110572891664
5 √n
37.923702737716
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
-78442904
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 78442905 can be divided by 8 positive divisors.
The sum of these divisors (counting 78442905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011001111000110011001
3
Ternary
12110121022102210
4
Quaternary
10223033012121
5
Quinary
130040133110
6
Senary
11441145333
8
Octal
453170631
10
Decimal
78442905
12
Duodecimal
2232b249
16
Hexadecimal
4acf199
20
Vigesimal
14a5755
36
Base36
1apaxl
md5
33dbc1fa50fd47a9c1e723c42078acca
sha1
e9da4e07687f3ec5f9993e661293ebd4ccefc888
sha256
9a9b79cf5e22a1e64ef718b657f05dca29cd6081d8f32e9336c7e72369b54b09
sha512
724ff8e6fe171c9c95da8c2e16cfb567f85057cb003bb1bb13e48ba2e7266cb26ec7a70a4575986ee2cba458833d552c02ecc10326a503d7b5b15fd13e14cd28
ripemd-160
63250bfb11b2b263412b0762dfb04c8a2520cb2d
Diameter
156885810
Circumference
492871308.14848
Area
1.9331128601159E+16
Volume
2.0218531792046E+24
Surface area
7.7324514404635E+16
Circumference
492871308.14848
Perimeter
313771620
Area
6153289344839025
Diagonal
110935020.12294
Surface area
36919736069034150
Volume
4.8268189151472E+23
Space diagonal
135867096.9533
Perimeter
235328715
Area
2.6644524447334E+15
Altitude
67933548.476649
Surface area
2.6644524447334E+15
Volume
5.6884606441001E+22
Height
36978340.040981