78939904 is an even 8-digits composite number following 78939903
and preceding 78939905 . In scientific notation, it is written as 7.8939904 × 10^7.
The sum of its digits is 49. It has a total of 9 prime factors and 18 positive divisors.
There are 39469824 positive integers (up to 78939904) that are relatively prime to 78939904.
78939904 has 18 divisors, whose sum is 157571960
The reverse of 78939904 is 40993987
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
seventy-eight million nine hundred thirty-nine thousand nine hundred four
Scientific notation
7.8939904 × 10^7
Engineering notation
7.8939904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 308359
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
9
Total number of prime factors
rad
Radical
616718
Product of the distinct prime numbers
The prime factorization of 78939904 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 308359.
Since it has a total of 9 prime factors.
1 , 2 , 100 , 95 , 239 , 718 , 6255 , 5223 , 98388 , 76460 , 396440 , 166751 , 9399030 , 1058567 , 26012224 , 88478801 , 38829834 , 274986660 , 979912379 , 1387030503
n×2
157879808
n×3
236819712
n×4
315759616
n×5
394699520
n÷2
39469952
n÷3
26313301.333333
n÷3
19734976
n÷5
15787980.8
n2
6231508443529216
n3
4.9191467830739E+23
n4
3.8831697481776E+31
n5
3.0653704713684E+39
2 √n
8884.8131100209
3 √n
428.97521242414
4 √n
94.259286598303
5 √n
37.971636852618
1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 , 256 , 308359 , 616718 , 1233436 , 2466872 , 4933744 , 9867488 , 19734976 , 39469952 , 78939904
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78939903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78939904 can be divided by 18 positive divisors.
The sum of these divisors (counting 78939904) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
100101101001000011100000000
3
Ternary
12111112120012011
4
Quaternary
10231020130000
5
Quinary
130202034104
6
Senary
11455542304
8
Octal
455103400
10
Decimal
78939904
12
Duodecimal
2252a994
16
Hexadecimal
4b48700
20
Vigesimal
14d79f4
36
Base36
1azyf4
md5
7b01cf11d09fd243047976f087cb6c1f
sha1
4a8cc93a2d5c77a8120b5569cf1b316e476a8441
sha256
c7bc5e906dab7a42f3799dedd724c7c9f4b599b8cf4caba6ee5f19ec4a5e0796
sha512
8cbc8ea83437d049f21f7da41f5fc0268dba07a01ba668379d37daf7a618ae25cac0dbe763823e4fb6939256062eaf14a6751095a95b5b18c6314da787f455a6
ripemd-160
35ed7e37a214092b9fc28b12579c3dcbb7166e80
Diameter
157879808
Circumference
495994044.96297
Area
1.9576861146974E+16
Volume
2.0605273860846E+24
Surface area
7.8307444587897E+16
Circumference
495994044.96297
Perimeter
315759616
Area
6231508443529216
Diagonal
111637882.84923
Surface area
37389050661175296
Volume
4.9191467830739E+23
Space diagonal
136727924.47261
Perimeter
236819712
Area
2.6983223079968E+15
Altitude
68363962.236305
Surface area
2.6983223079968E+15
Volume
5.7972700799392E+22
Height
37212627.61641