128609561 is an odd 9-digits prime number following 128609560
and preceding 128609562 . In scientific notation, it is written as 1.28609561 × 10^8.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 128609560 positive integers (up to 128609561) that are relatively prime to 128609561.
128609561 has 2 divisors, whose sum is 128609562
The reverse of 128609561 is 165906821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million six hundred nine thousand five hundred sixty-one
Scientific notation
1.28609561 × 10^8
Engineering notation
1.28609561 × 10^6
Prime Factorization
128609561
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
128609561
Product of the distinct prime numbers
The prime factorization of 128609561 is 128609561.
Since it has a total of 1 prime factors.
9 , 2 , 65 , 80 , 252 , 447 , 868 , 1769 , 40779 , 79602 , 151888 , 679751 , 6726867 , 5420980 , 35907558 , 94962700 , 288383688 , 644853246 , 8344738091 , 432949785
n×2
257219122
n×3
385828683
n×4
514438244
n×5
643047805
n÷2
64304780.5
n÷3
42869853.666667
n÷3
32152390.25
n÷5
25721912.2
n2
16540419180612721
n3
2.1272560495746E+24
n4
2.7358546667038E+32
n5
3.5185706764458E+40
2 √n
11340.615547668
3 √n
504.76715207282
4 √n
106.49232623841
5 √n
41.86534275463
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
128609562
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
64304781
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
11340.615591757
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999844491
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128609561 can be divided by 2 positive divisors.
The sum of these divisors (counting 128609561) is 128609562, the average is 64304781.
Base
System
Value
2
Binary
111101010100110110100011001
3
Ternary
22222000001011002
4
Quaternary
13222212310121
5
Quinary
230411001221
6
Senary
20432314345
8
Octal
752466431
10
Decimal
128609561
12
Duodecimal
370a29b5
16
Hexadecimal
7aa6d19
20
Vigesimal
203g3i1
36
Base36
24kjrt
md5
11b34c1fc273c6d60537f2d959678040
sha1
34a2e6df2069e1dc489da446e8004d8585c2e025
sha256
9584f671fba0cb650ea3975a15a94d1386507eab2b1f126e7642d7689904a028
sha512
46557af493cb791bf6d43f2903c8e3bd9aa14ad20a6f64f450a488d2afb5bb1518046ee172a0443795247b48a95d595e1f06d711e7b0dbb52d3a9d9bf4c59deb
ripemd-160
3557440d72a1ae9197a2293a89eb78cf7f602c82
Diameter
257219122
Circumference
808077704.03802
Area
5.1963259385109E+16
Volume
8.9106293035306E+24
Surface area
2.0785303754043E+17
Circumference
808077704.03802
Perimeter
514438244
Area
16540419180612721
Diagonal
181881385.41705
Surface area
99242515083676326
Volume
2.1272560495746E+24
Space diagonal
222758293.99113
Perimeter
385828683
Area
7.162211599827E+15
Altitude
111379146.99556
Surface area
7.162211599827E+15
Volume
2.5069952966238E+23
Height
60627128.47235