128946 is an even 6-digits composite number following 128945
and preceding 128947 . In scientific notation, it is written as 1.28946 × 10^5.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 42980 positive integers (up to 128946) that are relatively prime to 128946.
128946 has 8 divisors, whose sum is 257904
The reverse of 128946 is 649821
Previous prime number is 3
Is Prime? no
Number parity even
Number length 6
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-eight thousand nine hundred forty-six
Scientific notation
1.28946 × 10^5
Engineering notation
1.28946 × 10^3
Prime Factorization
2 × 3 × 21491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128946
Product of the distinct prime numbers
The prime factorization of 128946 is 2 × 3 × 21491.
Since it has a total of 3 prime factors.
8 , 7 , 48 , 73 , 944 , 211 , 7810 , 2185 , 80919 , 37054 , 806110 , 457108 , 620020 , 3445205 , 47877486 , 99413488 , 279030908 , 127183817 , 425971451 , 141225229
n×2
257892
n×3
386838
n×4
515784
n×5
644730
n÷2
64473
n÷3
42982
n÷3
32236.5
n÷5
25789.2
n2
16627070916
n3
2143994286334536
n4
2.7645948724569E+20
n5
3.5648345042383E+25
2 √n
359.09051783638
3 √n
50.520692105272
4 √n
18.949683845288
5 √n
10.521594857159
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
-128945
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 128946 can be divided by 8 positive divisors.
The sum of these divisors (counting 128946) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111011110110010
3
Ternary
20112212210
4
Quaternary
133132302
5
Quinary
13111241
6
Senary
2432550
8
Octal
373662
10
Decimal
128946
12
Duodecimal
62756
16
Hexadecimal
1f7b2
20
Vigesimal
g276
36
Base36
2rhu
md5
e33030029225bf3926d5079667a0a566
sha1
1fd76600a164c590a5a1586371353fde4e2051e3
sha256
3a73bce5be65dbe3590c5384f40b2d62da86627ff68db8748e42b0f383568680
sha512
074611629f8f77272691bf0a8f573b0b81decbe083a9b91bfd4401cec98568662c439f1ef162f9e59ed7d4161dfdff26f36feb774d83a2e560470ff1a5416703
ripemd-160
e738c01c5c05d53fa17f61afaae4e86d4e4d36d8
Diameter
257892
Circumference
810191.61261958
Area
52235483840.422
Volume
8.9807422657161E+15
Surface area
208941935361.69
Circumference
810191.61261958
Perimeter
515784
Area
16627070916
Diagonal
182357.18201376
Surface area
99762425496
Volume
2143994286334536
Space diagonal
223341.02343278
Perimeter
386838
Area
7199732901.8907
Altitude
111670.51171639
Surface area
7199732901.8907
Volume
2.5267214978206E+14
Height
60785.72733792