128291217 is an odd 9-digits composite number following 128291216
and preceding 128291218 . In scientific notation, it is written as 1.28291217 × 10^8.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 80263040 positive integers (up to 128291217) that are relatively prime to 128291217.
128291217 has 8 divisors, whose sum is 134714880
The reverse of 128291217 is 712192821
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million two hundred ninety-one thousand two hundred seventeen
Scientific notation
1.28291217 × 10^8
Engineering notation
1.28291217 × 10^6
Prime Factorization
159 × 23 × 35081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128291217
Product of the distinct prime numbers
The prime factorization of 128291217 is 159 × 23 × 35081.
Since it has a total of 3 prime factors.
3 , 10 , 33 , 95 , 580 , 627 , 4893 , 1634 , 66131 , 16385 , 690355 , 827516 , 4451578 , 9438124 , 52751627 , 35852286 , 97558466 , 589703969 , 7940095936 , 3772159972
n×2
256582434
n×3
384873651
n×4
513164868
n×5
641456085
n÷2
64145608.5
n÷3
42763739
n÷3
32072804.25
n÷5
25658243.4
n2
16458636359341089
n3
2.1114984887003E+24
n4
2.7088671080902E+32
n5
3.4752385798817E+40
2 √n
11326.571281725
3 √n
504.35032883598
4 √n
106.42636553846
5 √n
41.844596558201
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
-128291216
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 128291217 can be divided by 8 positive divisors.
The sum of these divisors (counting 128291217) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101001011001000110010001
3
Ternary
22221101212110120
4
Quaternary
13221121012101
5
Quinary
230320304332
6
Senary
20421420453
8
Octal
751310621
10
Decimal
128291217
12
Duodecimal
36b6a729
16
Hexadecimal
7a59191
20
Vigesimal
201g80h
36
Base36
24dq4x
md5
7cb242a2065c8f2b139f54e61ec37c09
sha1
0b72ccfa923de3abd5921c9878f0121545d90897
sha256
7f48eaecb777e350daa79541808df56007acb77cb8839bc2f936b6f8f42050ff
sha512
230f6ecf2ab2ce74b1a72260e113688b68f60b47e7239a58f1810c7bbb963d686078550988409ced8f2d5451b3cfed92294413a31e57d4af0265046d8eb775c7
ripemd-160
dd07d1b9bf58f06d629b12c8c303661b0a1ae441
Diameter
256582434
Circumference
806077489.69459
Area
5.1706331074612E+16
Volume
8.8446241868892E+24
Surface area
2.0682532429845E+17
Circumference
806077489.69459
Perimeter
513164868
Area
16458636359341089
Diagonal
181431179.01475
Surface area
98751818156046534
Volume
2.1114984887003E+24
Space diagonal
222206906.00884
Perimeter
384873651
Area
7.1267985994198E+15
Altitude
111103453.00442
Surface area
7.1267985994198E+15
Volume
2.4884248330419E+23
Height
60477059.671583