7989905 is an odd 7-digits composite number following 7989904
and preceding 7989906 . In scientific notation, it is written as 7.989905 × 10^6.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 4980480 positive integers (up to 7989905) that are relatively prime to 7989905.
7989905 has 16 divisors, whose sum is 11954304
The reverse of 7989905 is 5099897
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 47
Digital Root 2
Name
seven million nine hundred eighty-nine thousand nine hundred five
Scientific notation
7.989905 × 10^6
Engineering notation
7.989905 × 10^6
Prime Factorization
5 × 7 × 11 × 20753
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7989905
Product of the distinct prime numbers
The prime factorization of 7989905 is 5 × 7 × 11 × 20753.
Since it has a total of 4 prime factors.
9 , 10 , 51 , 3 , 604 , 162 , 3395 , 6614 , 52238 , 56877 , 410572 , 821885 , 765071 , 4594915 , 36900592 , 38857951 , 825293813 , 553334289 , 4879541969 , 125745581
n×2
15979810
n×3
23969715
n×4
31959620
n×5
39949525
n÷2
3994952.5
n÷3
2663301.6666667
n÷3
1997476.25
n÷5
1597981
n2
63838581909025
n3
5.1006420478783E+20
n4
4.0753645401553E+27
n5
3.2561775516209E+34
2 √n
2826.6420006785
3 √n
199.91583959009
4 √n
53.166173462819
5 √n
24.016422941594
1 , 5 , 7 , 11 , 35 , 55 , 77 , 385 , 20753 , 103765 , 145271 , 228283 , 726355 , 1141415 , 1597981 , 7989905
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
-7989904
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 7989905 can be divided by 16 positive divisors.
The sum of these divisors (counting 7989905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110011110101010010001
3
Ternary
120000221002102
4
Quaternary
132132222101
5
Quinary
4021134110
6
Senary
443130145
8
Octal
36365221
10
Decimal
7989905
12
Duodecimal
2813955
16
Hexadecimal
79ea91
20
Vigesimal
29ief5
36
Base36
4r91t
md5
31b9309913c7232a2645d6063770e4a3
sha1
d34f7ea62a7ab404a55cdeb5cef12cf21191b955
sha256
25f435217e832a715c409e54b0d6d1a4abd6ab04c0d363c091cd23615bfafd24
sha512
65ada724a3cae1fc6a558288fe389cbd7ce92e0c9432fcdaf499d09aca41735e07c1a1455b14e3455aaf80910282ea5689c6acf3c3c612836efd501845a34368
ripemd-160
fa8a84a3610d70a5cf4638e019bdb2e606671fba
Diameter
15979810
Circumference
50202053.701761
Area
2.0055481994098E+14
Volume
2.1365519448274E+21
Surface area
8.0221927976393E+14
Circumference
50202053.701761
Perimeter
31959620
Area
63838581909025
Diagonal
11299432.013073
Surface area
383031491454150
Volume
5.1006420478783E+20
Space diagonal
13838921.407649
Perimeter
23969715
Area
27642916837395
Altitude
6919460.7038243
Surface area
27642916837395
Volume
6.0111643007666E+19
Height
3766477.3376909