128778837 is an odd 9-digits composite number following 128778836
and preceding 128778838 . In scientific notation, it is written as 1.28778837 × 10^8.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 77702400 positive integers (up to 128778837) that are relatively prime to 128778837.
128778837 has 16 divisors, whose sum is 188143680
The reverse of 128778837 is 738877821
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
one hundred twenty-eight million seven hundred seventy-eight thousand eight hundred thirty-seven
Scientific notation
1.28778837 × 10^8
Engineering notation
1.28778837 × 10^6
Prime Factorization
3 × 11 × 229 × 17041
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128778837
Product of the distinct prime numbers
The prime factorization of 128778837 is 3 × 11 × 229 × 17041.
Since it has a total of 4 prime factors.
6 , 3 , 54 , 79 , 521 , 477 , 6323 , 8926 , 4394 , 97409 , 454525 , 73505 , 3650070 , 4038348 , 78947344 , 67696208 , 205643347 , 945238931 , 4766339437 , 1673819520
n×2
257557674
n×3
386336511
n×4
515115348
n×5
643894185
n÷2
64389418.5
n÷3
42926279
n÷3
32194709.25
n÷5
25755767.4
n2
16583988859072569
n3
2.1356667980923E+24
n4
2.7502868647784E+32
n5
3.5417874386254E+40
2 √n
11348.07635681
3 √n
504.98851328315
4 √n
106.52735027593
5 √n
41.876357596123
1 , 3 , 11 , 33 , 229 , 687 , 2519 , 7557 , 17041 , 51123 , 187451 , 562353 , 3902389 , 11707167 , 42926279 , 128778837
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
-128778836
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 128778837 can be divided by 16 positive divisors.
The sum of these divisors (counting 128778837) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101011010000001001010101
3
Ternary
22222022122100120
4
Quaternary
13223100021111
5
Quinary
230431410322
6
Senary
20440102153
8
Octal
753201125
10
Decimal
128778837
12
Duodecimal
37164959
16
Hexadecimal
7ad0255
20
Vigesimal
204h71h
36
Base36
24o6dx
md5
d9f392f4b318232c9c442db8a9522745
sha1
fb4f7fb3d179f0a9ae47c61b878b4e467049bbdf
sha256
f45db8ef00ac17489785508a42f8fcbd86bd93e73b65db719551d0533bb39d5b
sha512
2265fe0f567138ed7fafa3f8da19c4937910525ae10a1dc0bc6f591d2f3cab816412cad60821c0fcad2ceb100a81ce91b2280a79e302adc1c145105fc29b7887
ripemd-160
0212fa5b9ae53fcf3e32110e56c5dacf613631b9
Diameter
257557674
Circumference
809141296.51407
Area
5.2100137566877E+16
Volume
8.9458601645366E+24
Surface area
2.0840055026751E+17
Circumference
809141296.51407
Perimeter
515115348
Area
16583988859072569
Diagonal
182120777.83203
Surface area
99503933154435414
Volume
2.1356667980923E+24
Space diagonal
223051488.62363
Perimeter
386336511
Area
7.1810778240175E+15
Altitude
111525744.31182
Surface area
7.1810778240175E+15
Volume
2.5169074588101E+23
Height
60706925.944011