128389909 is an odd 9-digits prime number following 128389908
and preceding 128389910 . In scientific notation, it is written as 1.28389909 × 10^8.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 128389908 positive integers (up to 128389909) that are relatively prime to 128389909.
128389909 has 2 divisors, whose sum is 128389910
The reverse of 128389909 is 909983821
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 49 Digital Root 4
Name
one hundred twenty-eight million three hundred eighty-nine thousand nine hundred nine
Scientific notation
1.28389909 × 10^8
Engineering notation
1.28389909 × 10^6
Prime Factorization
128389909
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
128389909 Product of the distinct prime numbers
The prime factorization of 128389909 is 128389909.
Since it has a total of 1 prime factors.
5 , 6 , 33 , 74 , 123 , 212 , 5356 , 5252 , 74859 , 82409 , 825712 , 886749 , 7125784 , 9345020 , 51624506 , 9030806 , 271453418 , 394995137 , 2855374147 , 9118976897
n×2
256779818
n×3
385169727
n×4
513559636
n×5
641949545
n÷2
64194954.5
n÷3
42796636.333333
n÷3
32097477.25
n÷5
25677981.8
n2
16483968733028281
n3
2.1163752455923E+24
n4
2.7172122519145E+32
n5
3.4886263375699E+40
2 √n11330.927102404
3 √n504.47962473409
4 √n106.44682758262
5 √n41.851032628944
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
128389910 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64194955 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11330.927146531 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999844225 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128389909 can be divided by 2 positive divisors.
The sum of these divisors (counting 128389909) is 128389910, the average is 64194955.
Base
System
Value
2
Binary
111101001110001001100010101
3
Ternary
22221120212211211
4
Quaternary
13221301030111
5
Quinary
230331434114
6
Senary
20423501421
8
Octal
751611425
10
Decimal
128389909
12
Duodecimal
36bb7871
16
Hexadecimal
7a71315
20
Vigesimal
2028ef9
36
Base36
24fuad
md5
4e12ecc469f2ef1da69f3a79249fdaad
sha1
0cf18801e59d3702c7ff8161daf26e315126b590
sha256
0654c5bfee281d027aadde168b9b0e515213f539fca6d82de2b3cef8845980ba
sha512
69e43a27177d04433125a764e78e824f9d82bb5b6ed4816a5da4f0a2a630e30948e68a21381d52f73182cbf2626314c5cae506126a0e601852b9a874af8e9c2f
ripemd-160
8112a300acef7510a9d9a28caf1b31d71b6db1ca
Diameter
256779818
Circumference
806697589.81892
Area
5.1785915073685E+16
Volume
8.8650518983896E+24
Surface area
2.0714366029474E+17
Circumference
806697589.81892
Perimeter
513559636
Area
16483968733028281
Diagonal
181570750.57965
Surface area
98903812398169686
Volume
2.1163752455923E+24
Space diagonal
222377845.56714
Perimeter
385169727
Area
7.1377678389954E+15
Altitude
111188922.78357
Surface area
7.1377678389954E+15
Volume
2.4941721461562E+23
Height
60523583.526549