128021289 is an odd 9-digits composite number following 128021288
and preceding 128021290 . In scientific notation, it is written as 1.28021289 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 71808000 positive integers (up to 128021289) that are relatively prime to 128021289.
128021289 has 16 divisors, whose sum is 186508224
The reverse of 128021289 is 982120821
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million twenty-one thousand two hundred eighty-nine
Scientific notation
1.28021289 × 10^8
Engineering notation
1.28021289 × 10^6
Prime Factorization
3 × 713 × 11 × 5441
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128021289
Product of the distinct prime numbers
The prime factorization of 128021289 is 3 × 713 × 11 × 5441.
Since it has a total of 4 prime factors.
3 , 9 , 81 , 46 , 332 , 778 , 8362 , 8232 , 56984 , 20342 , 786249 , 526196 , 6897640 , 9813285 , 67188364 , 8193776 , 260620458 , 101630794 , 1110599104 , 3758024348
n×2
256042578
n×3
384063867
n×4
512085156
n×5
640106445
n÷2
64010644.5
n÷3
42673763
n÷3
32005322.25
n÷5
25604257.8
n2
16389450437221521
n3
2.0981985709747E+24
n4
2.6861408563414E+32
n5
3.4388321486439E+40
2 √n
11314.649309634
3 √n
503.99635847079
4 √n
106.37034036626
5 √n
41.826973299878
1 , 3 , 11 , 33 , 713 , 2139 , 5441 , 7843 , 16323 , 23529 , 59851 , 179553 , 3879433 , 11638299 , 42673763 , 128021289
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128021288
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128021289 can be divided by 16 positive divisors.
The sum of these divisors (counting 128021289) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101000010111001100101001
3
Ternary
22220220011012020
4
Quaternary
13220113030221
5
Quinary
230233140124
6
Senary
20411535053
8
Octal
750271451
10
Decimal
128021289
12
Duodecimal
36a5a489
16
Hexadecimal
7a17329
20
Vigesimal
2002d49
36
Base36
247xux
md5
baa7502acb6c0118812976f693377936
sha1
cca117d32e4bcb06a5197258e788dda584461832
sha256
d38e09fec0b3cdbbf3c2f1c274a8d3dbbfa61b10f8127c2cc06dc60117058dc3
sha512
6daa9b1513f303a9c9185ffdd044fa2cdb773c72098138e0ebc20238d85a634e533959f5d20a1d9bf92b5b54002e3cc7941300ca5c919d493e4f98733c8ad74b
ripemd-160
9fa3e41f09798ba56138695d8d0016f0cc7ac3b3
Diameter
256042578
Circumference
804381482.05099
Area
5.1488977089949E+16
Volume
8.7889136217957E+24
Surface area
2.059559083598E+17
Circumference
804381482.05099
Perimeter
512085156
Area
16389450437221521
Diagonal
181049443.17629
Surface area
98336702623329126
Volume
2.0981985709747E+24
Space diagonal
221739376.99846
Perimeter
384063867
Area
7.0968402163499E+15
Altitude
110869688.49923
Surface area
7.0968402163499E+15
Volume
2.4727507296869E+23
Height
60349814.392095