128561649 is an odd 9-digits composite number following 128561648
and preceding 128561650 . In scientific notation, it is written as 1.28561649 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 84254976 positive integers (up to 128561649) that are relatively prime to 128561649.
128561649 has 8 divisors, whose sum is 174321120
The reverse of 128561649 is 946165821
Previous prime number is 59
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred twenty-eight million five hundred sixty-one thousand six hundred forty-nine
Scientific notation
1.28561649 × 10^8
Engineering notation
1.28561649 × 10^6
Prime Factorization
3 × 59 × 726337
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
128561649 Product of the distinct prime numbers
The prime factorization of 128561649 is 3 × 59 × 726337.
Since it has a total of 3 prime factors.
9 , 8 , 4 , 76 , 652 , 231 , 3313 , 9798 , 26388 , 31617 , 614635 , 382003 , 8343103 , 8147571 , 63173003 , 36968525 , 28528138 , 854173564 , 3642886295 , 4295411370
n×2
257123298
n×3
385684947
n×4
514246596
n×5
642808245
n÷2
64280824.5
n÷3
42853883
n÷3
32140412.25
n÷5
25712329.8
n2
16528097593599201
n3
2.124879481466E+24
n4
2.7317801006354E+32
n5
3.5120215444307E+40
2 √n11338.502943511
3 √n504.7044625718
4 √n106.48240673234
5 √n41.862223000148
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
-128561648 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 128561649 can be divided by 8 positive divisors.
The sum of these divisors (counting 128561649) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101010011011000111110001
3
Ternary
22221220121102120
4
Quaternary
13222123013301
5
Quinary
230402433044
6
Senary
20431304453
8
Octal
752330761
10
Decimal
128561649
12
Duodecimal
3707b129
16
Hexadecimal
7a9b1f1
20
Vigesimal
203a429
36
Base36
24jisx
md5
d097ee52bdd7b67c8d08a94af9b60feb
sha1
9d2001fa240e23514117abdb96d71762dfba1dcb
sha256
0c8e125cbee565dabda1718eea16894bef4ee4706b6abc4319e37fa887efbb3d
sha512
f938e0f6619845cc32164ebf9d653203a1e5ef6d329f5673173c182e5ffa94f66ce15f9e006ef4abea4fa8fc9e3b8a4584b709ee34332f7dce32f4c960f7a64c
ripemd-160
d8c825edd54280b53687a40b1645fe6ccfca6589
Diameter
257123298
Circumference
807776664.06358
Area
5.1924549977866E+16
Volume
8.9006743583166E+24
Surface area
2.0769819991147E+17
Circumference
807776664.06358
Perimeter
514246596
Area
16528097593599201
Diagonal
181813627.61685
Surface area
99168585561595206
Volume
2.124879481466E+24
Space diagonal
222675307.97284
Perimeter
385684947
Area
7.1568761961427E+15
Altitude
111337653.98642
Surface area
7.1568761961427E+15
Volume
2.504194484248E+23
Height
60604542.53895