78138910 is an even 8-digits composite number following 78138909
and preceding 78138911 . In scientific notation, it is written as 7.8138910 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors.
There are 29432640 positive integers (up to 78138910) that are relatively prime to 78138910.
78138910 has 32 divisors, whose sum is 125079552
The reverse of 78138910 is 01983187
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-eight million one hundred thirty-eight thousand nine hundred ten
Scientific notation
7.8138910 × 10^7
Engineering notation
7.8138910 × 10^6
Prime Factorization
2 × 155 × 47 × 31 × 173
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
78138910
Product of the distinct prime numbers
The prime factorization of 78138910 is 2 × 155 × 47 × 31 × 173.
Since it has a total of 5 prime factors.
8 , 2 , 31 , 81 , 750 , 883 , 9833 , 5397 , 82121 , 46320 , 11599 , 314382 , 2916258 , 4628653 , 97829846 , 92401491 , 214127690 , 850646173 , 7522847550 , 2216589684
n×2
156277820
n×3
234416730
n×4
312555640
n×5
390694550
n÷2
39069455
n÷3
26046303.333333
n÷3
19534727.5
n÷5
15627782
n2
6105689255988100
n3
4.7709190326162E+23
n4
3.7279441290689E+31
n5
2.9129749078634E+39
2 √n
8839.621598236
3 √n
427.51935664666
4 √n
94.0192618469
5 √n
37.894263418187
1 , 2 , 31 , 47 , 62 , 94 , 155 , 173 , 310 , 346 , 1457 , 2914 , 4805 , 5363 , 7285 , 8131 , 9610 , 10726 , 14570 , 16262 , 26815 , 53630 , 225835 , 252061 , 451670 , 504122 , 831265 , 1260305 , 1662530 , 2520610 , 39069455 , 78138910
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78138909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78138910 can be divided by 32 positive divisors.
The sum of these divisors (counting 78138910) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101010000100111000011110
3
Ternary
12110000212102201
4
Quaternary
10222010320132
5
Quinary
130000421120
6
Senary
11430442114
8
Octal
452047036
10
Decimal
78138910
12
Duodecimal
2220333a
16
Hexadecimal
4a84e1e
20
Vigesimal
148775a
36
Base36
1aisda
md5
cc9df25540e5595fbc68c858f158202f
sha1
0454c8ccaf471e39314c21017857b55b87b82e9f
sha256
edebb75fd2b8b0bfc7ebfec786fa56f09bc0af8f687dfac5ed5dedf1562cc0ec
sha512
785f264589b51902a2271b4e753b88323d7ef17e3b487e4b6579c4675617c79cb310233cd90ec113b7fac5f9d92608b9e19cc573e32569150496cb708f2546fa
ripemd-160
0783c9dbf750298abf55a05532981fe19d908b2f
Diameter
156277820
Circumference
490961251.23103
Area
1.9181588511714E+16
Volume
1.9984378911652E+24
Surface area
7.6726354046857E+16
Circumference
490961251.23103
Perimeter
312555640
Area
6105689255988100
Diagonal
110505106.27105
Surface area
36634135535928600
Volume
4.7709190326162E+23
Space diagonal
135340562.16805
Perimeter
234416730
Area
2.6438410016497E+15
Altitude
67670281.084026
Surface area
2.6438410016497E+15
Volume
5.6225820007581E+22
Height
36835035.423684