78138512 is an even 8-digits composite number following 78138511
and preceding 78138513 . In scientific notation, it is written as 7.8138512 × 10^7.
The sum of its digits is 35. It has a total of 6 prime factors and 20 positive divisors.
There are 38849568 positive integers (up to 78138512) that are relatively prime to 78138512.
78138512 has 20 divisors, whose sum is 152244720
The reverse of 78138512 is 21583187
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-eight million one hundred thirty-eight thousand five hundred twelve
Scientific notation
7.8138512 × 10^7
Engineering notation
7.8138512 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 179 × 27283
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
9767314
Product of the distinct prime numbers
The prime factorization of 78138512 is 2 × 2 × 2 × 2 × 179 × 27283.
Since it has a total of 6 prime factors.
3 , 5 , 13 , 41 , 665 , 908 , 5271 , 5674 , 14130 , 90803 , 188484 , 100076 , 9623432 , 9133733 , 34250480 , 90459683 , 715351209 , 132240475 , 8986221976 , 3822876496
n×2
156277024
n×3
234415536
n×4
312554048
n×5
390692560
n÷2
39069256
n÷3
26046170.666667
n÷3
19534628
n÷5
15627702.4
n2
6105627057574144
n3
4.7708461310578E+23
n4
3.7278681766181E+31
n5
2.912900722531E+39
2 √n
8839.5990859314
3 √n
427.51863078979
4 √n
94.019142125056
5 √n
37.894224815274
1 , 2 , 4 , 8 , 16 , 179 , 358 , 716 , 1432 , 2864 , 27283 , 54566 , 109132 , 218264 , 436528 , 4883657 , 9767314 , 19534628 , 39069256 , 78138512
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
-78138511
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 78138512 can be divided by 20 positive divisors.
The sum of these divisors (counting 78138512) is 1, the average is 0.05.
Base
System
Value
2
Binary
100101010000100110010010000
3
Ternary
12110000211212222
4
Quaternary
10222010302100
5
Quinary
130000413022
6
Senary
11430440212
8
Octal
452046220
10
Decimal
78138512
12
Duodecimal
22203068
16
Hexadecimal
4a84c90
20
Vigesimal
148765c
36
Base36
1ais28
md5
ea6c35368cc28bcd26d54bc671747f1d
sha1
8b5b779b519f8dc5cf41b4d4f02155c207af2ffd
sha256
046716810daa080d3a8094f545291097ced1fcc604fb6721640210b755983343
sha512
3140a6db95f281227765878905685330577b995695312bf7de78ccf27c7d932e63ae0ea7eeb83c035a739d6bb25a01c5c46bcae1d0877ee31fae5d3ba2ad2eca
ripemd-160
7d6b4339e7123b402c00ce6b5c083a68aeb790e6
Diameter
156277024
Circumference
490958750.52328
Area
1.9181393109634E+16
Volume
1.9984073542318E+24
Surface area
7.6725572438536E+16
Circumference
490958750.52328
Perimeter
312554048
Area
6105627057574144
Diagonal
110504543.41405
Surface area
36633762345444864
Volume
4.7708461310578E+23
Space diagonal
135339872.81183
Perimeter
234415536
Area
2.6438140689464E+15
Altitude
67669936.405915
Surface area
2.6438140689464E+15
Volume
5.6224960854476E+22
Height
36834847.804684