128641382 is an even 9-digits composite number following 128641381
and preceding 128641383 . In scientific notation, it is written as 1.28641382 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 62244900 positive integers (up to 128641382) that are relatively prime to 128641382.
128641382 has 12 divisors, whose sum is 199390428
The reverse of 128641382 is 283146821
Previous prime number is 31
Is Prime? no Number parity even Number length 9 Sum of Digits 35 Digital Root 8
Name
one hundred twenty-eight million six hundred forty-one thousand three hundred eighty-two
Scientific notation
1.28641382 × 10^8
Engineering notation
1.28641382 × 10^6
Prime Factorization
2 × 31 × 31 × 66931
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
4149722 Product of the distinct prime numbers
The prime factorization of 128641382 is 2 × 31 × 31 × 66931.
Since it has a total of 4 prime factors.
7 , 9 , 4 , 2 , 110 , 211 , 7392 , 8292 , 81603 , 186 , 644162 , 867359 , 1694372 , 7970375 , 67967293 , 25116966 , 770228260 , 347721069 , 83538432 , 7197871604
n×2
257282764
n×3
385924146
n×4
514565528
n×5
643206910
n÷2
64320691
n÷3
42880460.666667
n÷3
32160345.5
n÷5
25728276.4
n2
16548605162869924
n3
2.1288354383239E+24
n4
2.7385633283657E+32
n5
3.5229257125548E+40
2 √n11342.01842707
3 √n504.80877902208
4 √n106.4989127976
5 √n41.867414241748
1 , 2 , 31 , 62 , 961 , 1922 , 66931 , 133862 , 2074861 , 4149722 , 64320691 , 128641382
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128641381 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128641382 can be divided by 12 positive divisors.
The sum of these divisors (counting 128641382) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101010101110100101100110
3
Ternary
22222001122210122
4
Quaternary
13222232211212
5
Quinary
230413011012
6
Senary
20433121542
8
Octal
752564546
10
Decimal
128641382
12
Duodecimal
370b92b2
16
Hexadecimal
7aae966
20
Vigesimal
2040392
36
Base36
24l8bq
md5
07c4d573399a994d25b135cd7c97ddbd
sha1
12898c23392ea58ea8f0ebf286622b584f44d2cb
sha256
65f28ccca699b320006a61432cdc4016932c1c2574efbe03e7a7c29a4f9b797a
sha512
77ba4ee45bb39cfd91f3a2fbdb79defe37a568e89afa9ed3c7808706bdf54ccb37103f2f70be65b2b00d31f55fb43e4a82b911ce4b968cded3597a57ff207310
ripemd-160
5be3ce13166b0305c1de13ef640ff091f946986e
Diameter
257282764
Circumference
808277641.27768
Area
5.198897640683E+16
Volume
8.9172450316534E+24
Surface area
2.0795590562732E+17
Circumference
808277641.27768
Perimeter
514565528
Area
16548605162869924
Diagonal
181926387.10682
Surface area
99291630977219544
Volume
2.1288354383239E+24
Space diagonal
222813409.57988
Perimeter
385924146
Area
7.1657562341218E+15
Altitude
111406704.78994
Surface area
7.1657562341218E+15
Volume
2.5088566241151E+23
Height
60642129.035606