128440891 is an odd 9-digits prime number following 128440890
and preceding 128440892 . In scientific notation, it is written as 1.28440891 × 10^8.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 128440890 positive integers (up to 128440891) that are relatively prime to 128440891.
128440891 has 2 divisors, whose sum is 128440892
The reverse of 128440891 is 198044821
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 37 Digital Root 1
Name
one hundred twenty-eight million four hundred forty thousand eight hundred ninety-one
Scientific notation
1.28440891 × 10^8
Engineering notation
1.28440891 × 10^6
Prime Factorization
128440891
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
128440891 Product of the distinct prime numbers
The prime factorization of 128440891 is 128440891.
Since it has a total of 1 prime factors.
8 , 1 , 16 , 45 , 510 , 346 , 7103 , 2322 , 72590 , 22979 , 48669 , 666570 , 5041849 , 9434657 , 4132386 , 52572935 , 52918486 , 210408253 , 4633559136 , 4363464108
n×2
256881782
n×3
385322673
n×4
513763564
n×5
642204455
n÷2
64220445.5
n÷3
42813630.333333
n÷3
32110222.75
n÷5
25688178.2
n2
16497062480873881
n3
2.1188974039261E+24
n4
2.7215307049786E+32
n5
3.4955582863131E+40
2 √n11333.176562641
3 √n504.54639004531
4 √n106.45739317981
5 √n41.854355803709
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
128440892 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64220446 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11333.176606759 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999844286 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128440891 can be divided by 2 positive divisors.
The sum of these divisors (counting 128440891) is 128440892, the average is 64220446.
Base
System
Value
2
Binary
111101001111101101000111011
3
Ternary
22221200110210001
4
Quaternary
13221331220323
5
Quinary
230340102031
6
Senary
20424533431
8
Octal
751755073
10
Decimal
128440891
12
Duodecimal
37021277
16
Hexadecimal
7a7da3b
20
Vigesimal
202f24b
36
Base36
24gxmj
md5
71050883cae18c1265b78a54a4855f6f
sha1
a12a2da9784efa566e3ad2c9b764dd3c15adf2c5
sha256
2f562ec40d65b996ce9bb2f69efd4013b2eb1493a1b627545c212ece27fed761
sha512
6f21ad37d57af3ee78ba7dc4bbf514b39d51ca00d72b59885f43c3e63bf92bf532b164be4faeda06421d774745a83b385a726f5f50bfe63d7941d6506f634ead
ripemd-160
7a1d033bf5db19bfac181e58367e812ba88dd3d5
Diameter
256881782
Circumference
807017919.17225
Area
5.1827050295725E+16
Volume
8.875616690513E+24
Surface area
2.073082011829E+17
Circumference
807017919.17225
Perimeter
513763564
Area
16497062480873881
Diagonal
181642850.01548
Surface area
98982374885243286
Volume
2.1188974039261E+24
Space diagonal
222466148.98142
Perimeter
385322673
Area
7.143437598128E+15
Altitude
111233074.49071
Surface area
7.143437598128E+15
Volume
2.4971445382579E+23
Height
60547616.671828