78445021 is an odd 8-digits composite number following 78445020
and preceding 78445022 . In scientific notation, it is written as 7.8445021 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 72259008 positive integers (up to 78445021) that are relatively prime to 78445021.
78445021 has 8 divisors, whose sum is 84827520
The reverse of 78445021 is 12054487
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
seventy-eight million four hundred forty-five thousand twenty-one
Scientific notation
7.8445021 × 10^7
Engineering notation
7.8445021 × 10^6
Prime Factorization
17 × 47 × 98179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78445021
Product of the distinct prime numbers
The prime factorization of 78445021 is 17 × 47 × 98179.
Since it has a total of 3 prime factors.
6 , 8 , 18 , 47 , 660 , 769 , 5243 , 6429 , 94846 , 51323 , 195266 , 54306 , 1084130 , 9016568 , 54509424 , 51492567 , 313289364 , 300106300 , 7648022406 , 1608245119
n×2
156890042
n×3
235335063
n×4
313780084
n×5
392225105
n÷2
39222510.5
n÷3
26148340.333333
n÷3
19611255.25
n÷5
15689004.2
n2
6153621319690441
n3
4.8272095364916E+23
n4
3.7867055346149E+31
n5
2.9704819518368E+39
2 √n
8856.9193854297
3 √n
428.07690156011
4 √n
94.111207544212
5 √n
37.92390733414
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
-78445020
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 78445021 can be divided by 8 positive divisors.
The sum of these divisors (counting 78445021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011001111100111011101
3
Ternary
12110121102100011
4
Quaternary
10223033213131
5
Quinary
130040220041
6
Senary
11441203221
8
Octal
453174735
10
Decimal
78445021
12
Duodecimal
22330511
16
Hexadecimal
4acf9dd
20
Vigesimal
14a5cb1
36
Base36
1apckd
md5
b1bb95be53183ebb36d674f4204220f9
sha1
0b5f630fef3b6ee9ed3f0f095b5e8e9b00c67232
sha256
1887c7a5f32f817357cd67009eca384f4163c954ca9d7042394622727b3d214a
sha512
153bd3df19e77ade370aa3ea38208517d2646f7aa255abd4edaf45b790807ae7a25d519160d965a986e7da6721ad404c831d620fedb5047766a4e9958bc8e78f
ripemd-160
1e7d1498705329331dbcbf1cc5981de250c39a12
Diameter
156890042
Circumference
492884603.36859
Area
1.9332171530913E+16
Volume
2.0220168022908E+24
Surface area
7.7328686123652E+16
Circumference
492884603.36859
Perimeter
313780084
Area
6153621319690441
Diagonal
110938012.59884
Surface area
36921727918142646
Volume
4.8272095364916E+23
Space diagonal
135870761.97281
Perimeter
235335063
Area
2.6645961940607E+15
Altitude
67935380.986404
Surface area
2.6645961940607E+15
Volume
5.6889209957694E+22
Height
36979337.532947