78905072 is an even 8-digits composite number following 78905071
and preceding 78905073 . In scientific notation, it is written as 7.8905072 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors.
There are 39381888 positive integers (up to 78905072) that are relatively prime to 78905072.
78905072 has 20 divisors, whose sum is 153152400
The reverse of 78905072 is 27050987
Previous prime number is 599
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-eight million nine hundred five thousand seventy-two
Scientific notation
7.8905072 × 10^7
Engineering notation
7.8905072 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 599 × 8233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
9863134
Product of the distinct prime numbers
The prime factorization of 78905072 is 2 × 2 × 2 × 2 × 599 × 8233.
Since it has a total of 6 prime factors.
9 , 10 , 63 , 33 , 623 , 680 , 6281 , 7531 , 46465 , 38072 , 302977 , 395726 , 1997497 , 4337611 , 18994845 , 52367729 , 431496016 , 541247703 , 3788838362 , 8918344854
n×2
157810144
n×3
236715216
n×4
315620288
n×5
394525360
n÷2
39452536
n÷3
26301690.666667
n÷3
19726268
n÷5
15781014.4
n2
6226010387325184
n3
4.9126379788464E+23
n4
3.8763205343081E+31
n5
3.0586135085466E+39
2 √n
8882.8526949398
3 √n
428.91210845899
4 √n
94.248886969236
5 √n
37.968285286447
1 , 2 , 4 , 8 , 16 , 599 , 1198 , 2396 , 4792 , 8233 , 9584 , 16466 , 32932 , 65864 , 131728 , 4931567 , 9863134 , 19726268 , 39452536 , 78905072
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78905071
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78905072 can be divided by 20 positive divisors.
The sum of these divisors (counting 78905072) is 1, the average is 0.05.
Base
System
Value
2
Binary
100101100111111111011110000
3
Ternary
12111110210102002
4
Quaternary
10230333323300
5
Quinary
130144430242
6
Senary
11455113132
8
Octal
454777360
10
Decimal
78905072
12
Duodecimal
225127a8
16
Hexadecimal
4b3fef0
20
Vigesimal
14d32dc
36
Base36
1az7jk
md5
085d47992388a0074bace01c9958b5f3
sha1
8768dfa8e2d8b09aedc443ac04d27ba7e44b251e
sha256
0479a92cbeb23040436764b4d686efc4e936ba33f508ad9524e86e76a973ed46
sha512
d11a7216ad9e780c4966772bc2bdda67634bba37c0868975a1c9d8ca1860937e9246b14ccb92c4b1268fefb4bbb432b8822204fbb98b61a9c482bcd2aac296ca
ripemd-160
34a9dba4e4148c0461d0e57b27808cfb183119b1
Diameter
157810144
Circumference
495775189.05235
Area
1.9559588493995E+16
Volume
2.0578009845453E+24
Surface area
7.8238353975978E+16
Circumference
495775189.05235
Perimeter
315620288
Area
6226010387325184
Diagonal
111588622.96243
Surface area
37356062323951104
Volume
4.9126379788464E+23
Space diagonal
136667593.67888
Perimeter
236715216
Area
2.6959415798247E+15
Altitude
68333796.83944
Surface area
2.6959415798247E+15
Volume
5.7895993805948E+22
Height
37196207.654142