78138907 is an odd 8-digits composite number following 78138906
and preceding 78138908 . In scientific notation, it is written as 7.8138907 × 10^7.
The sum of its digits is 43. It has a total of 5 prime factors and 32 positive divisors.
There are 58156800 positive integers (up to 78138907) that are relatively prime to 78138907.
78138907 has 32 divisors, whose sum is 101896704
The reverse of 78138907 is 70983187
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-eight million one hundred thirty-eight thousand nine hundred seven
Scientific notation
7.8138907 × 10^7
Engineering notation
7.8138907 × 10^6
Prime Factorization
7 × 11 × 53 × 41 × 467
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
78138907
Product of the distinct prime numbers
The prime factorization of 78138907 is 7 × 11 × 53 × 41 × 467.
Since it has a total of 5 prime factors.
10 , 3 , 43 , 18 , 851 , 508 , 4681 , 9243 , 12571 , 33035 , 348644 , 684045 , 5127329 , 1490957 , 45674355 , 11485561 , 601217928 , 739421513 , 683746729 , 5235953972
n×2
156277814
n×3
234416721
n×4
312555628
n×5
390694535
n÷2
39069453.5
n÷3
26046302.333333
n÷3
19534726.75
n÷5
15627781.4
n2
6105688787154649
n3
4.7709184831042E+23
n4
3.7279435565586E+31
n5
2.9129743486718E+39
2 √n
8839.6214285455
3 √n
427.51935117538
4 √n
94.019260944476
5 √n
37.894263127211
1 , 7 , 11 , 41 , 53 , 77 , 287 , 371 , 451 , 467 , 583 , 2173 , 3157 , 3269 , 4081 , 5137 , 15211 , 19147 , 23903 , 24751 , 35959 , 134029 , 167321 , 173257 , 210617 , 272261 , 1014791 , 1474319 , 1905827 , 7103537 , 11162701 , 78138907
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
-78138906
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 78138907 can be divided by 32 positive divisors.
The sum of these divisors (counting 78138907) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101010000100111000011011
3
Ternary
12110000212102121
4
Quaternary
10222010320123
5
Quinary
130000421112
6
Senary
11430442111
8
Octal
452047033
10
Decimal
78138907
12
Duodecimal
22203337
16
Hexadecimal
4a84e1b
20
Vigesimal
1487757
36
Base36
1aisd7
md5
61dde9f3cab5930409d8a672282ae15d
sha1
6d6599bd65899db321a3d0d36ce48d2cee9671d5
sha256
50ee5751485540387741e01e19b6926b99005a44b0572c662be3b4d550732822
sha512
8b9abdd28792c1588941d9a79bd1c99bca8edb57cb67c359f63d181c265412d28e1310255f5888e20d08ec176f9049743377b8c6edd3965c8ffc07c888f729cb
ripemd-160
97f1d3da0a7a943480e5a230f6a3461f4261cbd7
Diameter
156277814
Circumference
490961232.38147
Area
1.9181587038831E+16
Volume
1.9984376609861E+24
Surface area
7.6726348155322E+16
Circumference
490961232.38147
Perimeter
312555628
Area
6105688787154649
Diagonal
110505102.02841
Surface area
36634132722927894
Volume
4.7709184831042E+23
Space diagonal
135340556.9719
Perimeter
234416721
Area
2.6438407986389E+15
Altitude
67670278.48595
Surface area
2.6438407986389E+15
Volume
5.622581353152E+22
Height
36835034.00947