78442857 is an odd 8-digits composite number following 78442856
and preceding 78442858 . In scientific notation, it is written as 7.8442857 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 50021136 positive integers (up to 78442857) that are relatively prime to 78442857.
78442857 has 16 divisors, whose sum is 121265280
The reverse of 78442857 is 75824487
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-eight million four hundred forty-two thousand eight hundred fifty-seven
Scientific notation
7.8442857 × 10^7
Engineering notation
7.8442857 × 10^6
Prime Factorization
9 × 3 × 23 × 126317
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78442857
Product of the distinct prime numbers
The prime factorization of 78442857 is 9 × 3 × 23 × 126317.
Since it has a total of 4 prime factors.
6 , 1 , 14 , 70 , 155 , 365 , 5632 , 9044 , 78696 , 48361 , 480390 , 185208 , 7726780 , 782397 , 77552709 , 52520322 , 720460443 , 657034342 , 5815680826 , 9432499
n×2
156885714
n×3
235328571
n×4
313771428
n×5
392214285
n÷2
39221428.5
n÷3
26147619
n÷3
19610714.25
n÷5
15688571.4
n2
6153281814322449
n3
4.826810054416E+23
n4
3.7862877086471E+31
n5
2.9700722529027E+39
2 √n
8856.7972202145
3 √n
428.07296518564
4 √n
94.11055849486
5 √n
37.923698096536
1 , 3 , 9 , 23 , 27 , 69 , 207 , 621 , 126317 , 378951 , 1136853 , 2905291 , 3410559 , 8715873 , 26147619 , 78442857
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
-78442856
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 78442857 can be divided by 16 positive divisors.
The sum of these divisors (counting 78442857) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101011001111000101101001
3
Ternary
12110121022101000
4
Quaternary
10223033011221
5
Quinary
130040132412
6
Senary
11441145213
8
Octal
453170551
10
Decimal
78442857
12
Duodecimal
2232b209
16
Hexadecimal
4acf169
20
Vigesimal
14a572h
36
Base36
1apaw9
md5
a800974c31d8d8ad6bbc9656073dc6ae
sha1
cbbc10665821d929da30ee7a753eb6df9c12c1a6
sha256
7ba63017f44dc0b1c7c458ff249855ca2020e338560da804faae4cded9dd19e9
sha512
e35ad2d196e6c17ee3d6f9e6a427c124b4cd7d66642d606c6a38f5d261ba2807c0cea61901c48eb05bdabdcc2e3b6cddd65b988e4fe89919d233a6ace51869e9
ripemd-160
0c87e22e15a13b63d4fb1e8149ba912d9f8b3110
Diameter
156885714
Circumference
492871006.55559
Area
1.9331104943343E+16
Volume
2.0218494676302E+24
Surface area
7.7324419773372E+16
Circumference
492871006.55559
Perimeter
313771428
Area
6153281814322449
Diagonal
110934952.24069
Surface area
36919690885934694
Volume
4.826810054416E+23
Space diagonal
135867013.81486
Perimeter
235328571
Area
2.664449183924E+15
Altitude
67933506.90743
Surface area
2.664449183924E+15
Volume
5.6884502016282E+22
Height
36978317.413564