128049761 is an odd 9-digits composite number following 128049760
and preceding 128049762 . In scientific notation, it is written as 1.28049761 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 103709760 positive integers (up to 128049761) that are relatively prime to 128049761.
128049761 has 8 divisors, whose sum is 146460864
The reverse of 128049761 is 167940821
Previous prime number is 1363
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million forty-nine thousand seven hundred sixty-one
Scientific notation
1.28049761 × 10^8
Engineering notation
1.28049761 × 10^6
Prime Factorization
7 × 1363 × 13421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128049761
Product of the distinct prime numbers
The prime factorization of 128049761 is 7 × 1363 × 13421.
Since it has a total of 3 prime factors.
5 , 4 , 65 , 55 , 831 , 282 , 8054 , 8285 , 90436 , 47599 , 918371 , 183869 , 6143277 , 4724361 , 28971934 , 28824640 , 313195659 , 804881760 , 8878315099 , 4213341635
n×2
256099522
n×3
384149283
n×4
512199044
n×5
640248805
n÷2
64024880.5
n÷3
42683253.666667
n÷3
32012440.25
n÷5
25609952.2
n2
16396741292157121
n3
2.0995988036396E+24
n4
2.6885312500193E+32
n5
3.44265784006E+40
2 √n
11315.907431576
3 √n
504.03371871705
4 √n
106.37625407757
5 √n
41.828833602433
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128049760
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128049761 can be divided by 8 positive divisors.
The sum of these divisors (counting 128049761) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000011110001001100001
3
Ternary
22220221121020202
4
Quaternary
13220132021201
5
Quinary
230240043021
6
Senary
20412314545
8
Octal
750361141
10
Decimal
128049761
12
Duodecimal
36a72a55
16
Hexadecimal
7a1e261
20
Vigesimal
2006481
36
Base36
248jtt
md5
c10f22974baac0dd1e270b169dc915b9
sha1
97ac2c6d3218e75a560348bce534e011e95e7a02
sha256
4713e647a9de7284f8f84b79304456fb84e9d8edf67e0464765a3609117671a5
sha512
f58ab3cab090baa4b1be3cef338a20af548d284a46a1ba4e86b7f7ea9a6bf3b7393c4f672fbdfaf98b7e73273890f20adafacfec502c53fb83c3fb10ea4b3f3c
ripemd-160
dc892b9dc4dfd5c44b54685bc74700e9a88fe8c9
Diameter
256099522
Circumference
804560376.90306
Area
5.1511881986253E+16
Volume
8.7947789026666E+24
Surface area
2.0604752794501E+17
Circumference
804560376.90306
Perimeter
512199044
Area
16396741292157121
Diagonal
181089708.66483
Surface area
98380447752942726
Volume
2.0995988036396E+24
Space diagonal
221788691.94905
Perimeter
384149283
Area
7.0999972491447E+15
Altitude
110894345.97453
Surface area
7.0999972491447E+15
Volume
2.4744009197078E+23
Height
60363236.221611