78156940 is an even 8-digits composite number following 78156939
and preceding 78156941 . In scientific notation, it is written as 7.8156940 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 31262768 positive integers (up to 78156940) that are relatively prime to 78156940.
78156940 has 12 divisors, whose sum is 164129616
The reverse of 78156940 is 04965187
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-eight million one hundred fifty-six thousand nine hundred forty
Scientific notation
7.8156940 × 10^7
Engineering notation
7.8156940 × 10^6
Prime Factorization
2 × 2 × 5 × 3907847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
39078470
Product of the distinct prime numbers
The prime factorization of 78156940 is 2 × 2 × 5 × 3907847.
Since it has a total of 4 prime factors.
2 , 9 , 50 , 18 , 853 , 808 , 5500 , 5690 , 32650 , 69346 , 756433 , 35417 , 7918984 , 6137903 , 55225726 , 38563242 , 579277913 , 599256637 , 1136437516 , 2976227621
n×2
156313880
n×3
234470820
n×4
312627760
n×5
390784700
n÷2
39078470
n÷3
26052313.333333
n÷3
19539235
n÷5
15631388
n2
6108507270163600
n3
4.7742223620374E+23
n4
3.7313861069642E+31
n5
2.9163372007883E+39
2 √n
8840.6413794475
3 √n
427.55223647229
4 √n
94.024684947345
5 √n
37.896012023376
1 , 2 , 4 , 5 , 10 , 20 , 3907847 , 7815694 , 15631388 , 19539235 , 39078470 , 78156940
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78156939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78156940 can be divided by 12 positive divisors.
The sum of these divisors (counting 78156940) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101010001001010010001100
3
Ternary
12110001210011111
4
Quaternary
10222021102030
5
Quinary
130002010230
6
Senary
11431101404
8
Octal
452112214
10
Decimal
78156940
12
Duodecimal
22211864
16
Hexadecimal
4a8948c
20
Vigesimal
1489c70
36
Base36
1aj6a4
md5
abbfd91b4de99d3d9e3bd869460afd80
sha1
7e957b3977c4d8d2f6f319cdfff3443b0b92300f
sha256
bee9f2d1e018779a9faf8a23ae3482fd56788e7867352ac12c242a11babafa3a
sha512
a308e7f7c8306bb6df02cf792061ed9a389a6343f47fca2b1c774d0a5116649221315543867c7d290f258a4317cef947bcc46040b6768a09a1baa25d26d44ca7
ripemd-160
831af7d0dbc7a646d8672a5e0a422f98bc8f0dee
Diameter
156313880
Circumference
491074537.06212
Area
1.9190441564346E+16
Volume
1.9998215865574E+24
Surface area
7.6761766257383E+16
Circumference
491074537.06212
Perimeter
312627760
Area
6108507270163600
Diagonal
110530604.54158
Surface area
36651043620981600
Volume
4.7742223620374E+23
Space diagonal
135371791.04411
Perimeter
234470820
Area
2.6450612375818E+15
Altitude
67685895.522056
Surface area
2.6450612375818E+15
Volume
5.6264750118152E+22
Height
36843534.847193