77128215 is an odd 8-digits composite number following 77128214
and preceding 77128216 . In scientific notation, it is written as 7.7128215 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 40820000 positive integers (up to 77128215) that are relatively prime to 77128215.
77128215 has 16 divisors, whose sum is 124350336
The reverse of 77128215 is 51282177
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-seven million one hundred twenty-eight thousand two hundred fifteen
Scientific notation
7.7128215 × 10^7
Engineering notation
7.7128215 × 10^6
Prime Factorization
5 × 3 × 131 × 39251
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77128215
Product of the distinct prime numbers
The prime factorization of 77128215 is 5 × 3 × 131 × 39251.
Since it has a total of 4 prime factors.
2 , 5 , 50 , 13 , 840 , 4 , 2115 , 1830 , 37596 , 69779 , 264746 , 947575 , 3343513 , 2087499 , 35668507 , 81779805 , 148508291 , 396093910 , 9466780549 , 3859601177
n×2
154256430
n×3
231384645
n×4
308512860
n×5
385641075
n÷2
38564107.5
n÷3
25709405
n÷3
19282053.75
n÷5
15425643
n2
5948761549086225
n3
4.5881735974166E+23
n4
3.5387763967887E+31
n5
2.7293950676844E+39
2 √n
8782.2670763306
3 √n
425.66808879344
4 √n
93.71375073238
5 √n
37.79572288297
1 , 3 , 5 , 15 , 131 , 393 , 655 , 1965 , 39251 , 117753 , 196255 , 588765 , 5141881 , 15425643 , 25709405 , 77128215
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
-77128214
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 77128215 can be divided by 16 positive divisors.
The sum of these divisors (counting 77128215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100100110001110001000010111
3
Ternary
12101010112000120
4
Quaternary
10212032020113
5
Quinary
124221100330
6
Senary
11353043023
8
Octal
446161027
10
Decimal
77128215
12
Duodecimal
219b6473
16
Hexadecimal
498e217
20
Vigesimal
14210af
36
Base36
19x4if
md5
2e7113afbf03fc5d3511d8521f1cf807
sha1
3e58b46ebd8e1b027622cec004689152e5c00dd5
sha256
bb1bd2597b9261c7801065b0b7cfd1dad1d668056a1a37f603f23bbe6605057c
sha512
604a00629925abe4389bbc27c141f776688ad4d57c2f595c5527e67b866d5680b1bbd3d5adc41548ba6b819b2f650f00462f91a9e2daeffbd203d16a19d73ab3
ripemd-160
13c83c25cd97fd42689bcc17cc258234b84c1a6f
Diameter
154256430
Circumference
484610867.25699
Area
1.8688585580567E+16
Volume
1.9218896622718E+24
Surface area
7.4754342322267E+16
Circumference
484610867.25699
Perimeter
308512860
Area
5948761549086225
Diagonal
109075767.69463
Surface area
35692569294517350
Volume
4.5881735974166E+23
Space diagonal
133589987.0771
Perimeter
231384645
Area
2.5758893112824E+15
Altitude
66794993.538548
Surface area
2.5758893112824E+15
Volume
5.4072144399905E+22
Height
36358589.231543