78389906 is an even 8-digits composite number following 78389905
and preceding 78389907 . In scientific notation, it is written as 7.8389906 × 10^7.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 33381936 positive integers (up to 78389906) that are relatively prime to 78389906.
78389906 has 16 divisors, whose sum is 118680000
The reverse of 78389906 is 60998387
Previous prime number is 499
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
seventy-eight million three hundred eighty-nine thousand nine hundred six
Scientific notation
7.8389906 × 10^7
Engineering notation
7.8389906 × 10^6
Prime Factorization
2 × 343 × 499 × 229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78389906
Product of the distinct prime numbers
The prime factorization of 78389906 is 2 × 343 × 499 × 229.
Since it has a total of 4 prime factors.
1 , 1 , 77 , 80 , 314 , 496 , 7676 , 819 , 62061 , 10162 , 739081 , 307500 , 6715213 , 3820636 , 90446847 , 71380788 , 170761294 , 533849494 , 2898309190 , 7002444085
n×2
156779812
n×3
235169718
n×4
313559624
n×5
391949530
n÷2
39194953
n÷3
26129968.666667
n÷3
19597476.5
n÷5
15677981.2
n2
6144977362688836
n3
4.8170419783331E+23
n4
3.7760746787958E+31
n5
2.9600613911978E+39
2 √n
8853.8074295751
3 √n
427.97662331926
4 √n
94.094672694979
5 √n
37.918576814007
1 , 2 , 229 , 343 , 458 , 499 , 686 , 998 , 78547 , 114271 , 157094 , 171157 , 228542 , 342314 , 39194953 , 78389906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78389905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78389906 can be divided by 16 positive divisors.
The sum of these divisors (counting 78389906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101011000010001010010010
3
Ternary
12110111121201212
4
Quaternary
10223002022102
5
Quinary
130031434111
6
Senary
11440100122
8
Octal
453021222
10
Decimal
78389906
12
Duodecimal
22304642
16
Hexadecimal
4ac2292
20
Vigesimal
149ief6
36
Base36
1ao61e
md5
62dc6ab0e53c7850be28a60cdc77a93f
sha1
0ee33af519dbfdde87e26e31282da530d25a6fe3
sha256
908d6714df609751238da765db33e68e7e8ce9906115ebc66e30d40276b2915f
sha512
dff7938516ae8f300cd3e9b3ac906a05c53c445ad8e98185781638a5907668abae82cca1b0e95f8e00c4da1358d896182948e119555b44f92704a10fae57e65f
ripemd-160
9471576772f570ed32f9bda844d6c57bbb1163d1
Diameter
156779812
Circumference
492538305.61039
Area
1.9305015739099E+16
Volume
2.0177578254886E+24
Surface area
7.7220062956395E+16
Circumference
492538305.61039
Perimeter
313559624
Area
6144977362688836
Diagonal
110860068.21835
Surface area
36869864176133016
Volume
4.8170419783331E+23
Space diagonal
135775299.99255
Perimeter
235169718
Area
2.6608532508844E+15
Altitude
67887649.996274
Surface area
2.6608532508844E+15
Volume
5.6769384135659E+22
Height
36953356.072784