78138812 is an even 8-digits composite number following 78138811
and preceding 78138813 . In scientific notation, it is written as 7.8138812 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 39069404 positive integers (up to 78138812) that are relatively prime to 78138812.
78138812 has 6 divisors, whose sum is 136742928
The reverse of 78138812 is 21883187
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-eight million one hundred thirty-eight thousand eight hundred twelve
Scientific notation
7.8138812 × 10^7
Engineering notation
7.8138812 × 10^6
Prime Factorization
2 × 2 × 19534703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
39069406
Product of the distinct prime numbers
The prime factorization of 78138812 is 2 × 2 × 19534703.
Since it has a total of 3 prime factors.
9 , 1 , 17 , 51 , 679 , 163 , 9942 , 4902 , 99198 , 56631 , 238071 , 344621 , 405013 , 4158660 , 72876813 , 92797431 , 930498110 , 264280978 , 2444703030 , 8376461488
n×2
156277624
n×3
234416436
n×4
312555248
n×5
390694060
n÷2
39069406
n÷3
26046270.666667
n÷3
19534703
n÷5
15627762.4
n2
6105673940771344
n3
4.7709010819123E+23
n4
3.7279254271014E+31
n5
2.912956640983E+39
2 √n
8839.6160550105
3 √n
427.51917791831
4 √n
94.019232367694
5 √n
37.894253912961
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78138811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78138812 can be divided by 6 positive divisors.
The sum of these divisors (counting 78138812) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100101010000100110110111100
3
Ternary
12110000212022002
4
Quaternary
10222010312330
5
Quinary
130000420222
6
Senary
11430441432
8
Octal
452046674
10
Decimal
78138812
12
Duodecimal
22203278
16
Hexadecimal
4a84dbc
20
Vigesimal
148770c
36
Base36
1aisak
md5
f2924fd9c59f99afafcdb5628a676113
sha1
b934b92d7fd8dd960c890eccc82b38bcd7eaa2bc
sha256
56a3ed11d3aceac18f44cbe743e9b10fad73544e44cd28e0942bbd98bf47c44e
sha512
9ed6dc878ffbd726c8e93bffcf047ba99bd6cdc3c6992fe3f8d1491170fe1f28df2b3ea7240152bcb3d9f695a7f73fe22f731dcc72ccde06894b298759804320
ripemd-160
d13ceb31958a9689fa0474be263f39d21a55ca51
Diameter
156277624
Circumference
490960635.47887
Area
1.9181540397542E+16
Volume
1.9984303719919E+24
Surface area
7.6726161590168E+16
Circumference
490960635.47887
Perimeter
312555248
Area
6105673940771344
Diagonal
110504967.67812
Surface area
36634043644628064
Volume
4.7709010819123E+23
Space diagonal
135340392.42707
Perimeter
234416436
Area
2.6438343699663E+15
Altitude
67670196.213536
Surface area
2.6438343699663E+15
Volume
5.6225608456507E+22
Height
36834989.226041