128216385 is an odd 9-digits composite number following 128216384
and preceding 128216386 . In scientific notation, it is written as 1.28216385 × 10^8.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 62164800 positive integers (up to 128216385) that are relatively prime to 128216385.
128216385 has 32 divisors, whose sum is 248664960
The reverse of 128216385 is 583612821
Previous prime number is 11
Is Prime? no Number parity odd Number length 9 Sum of Digits 36 Digital Root 9
Name
one hundred twenty-eight million two hundred sixteen thousand three hundred eighty-five
Scientific notation
1.28216385 × 10^8
Engineering notation
1.28216385 × 10^6
Prime Factorization
3 × 5 × 9 × 11 × 86341
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
128216385 Product of the distinct prime numbers
The prime factorization of 128216385 is 3 × 5 × 9 × 11 × 86341.
Since it has a total of 5 prime factors.
6 , 5 , 65 , 7 , 222 , 102 , 7464 , 2554 , 36833 , 5679 , 991524 , 795489 , 6749382 , 4877417 , 13561583 , 44050374 , 678639882 , 638565336 , 8849426760 , 3419138544
n×2
256432770
n×3
384649155
n×4
512865540
n×5
641081925
n÷2
64108192.5
n÷3
42738795
n÷3
32054096.25
n÷5
25643277
n2
16439441382468225
n3
2.1078057454795E+24
n4
2.7025523296761E+32
n5
3.465114899844E+40
2 √n11323.267417137
3 √n504.25224759743
4 √n106.41084257319
5 √n41.839713845613
1 , 3 , 5 , 9 , 11 , 15 , 27 , 33 , 45 , 55 , 99 , 135 , 165 , 297 , 495 , 1485 , 86341 , 259023 , 431705 , 777069 , 949751 , 1295115 , 2331207 , 2849253 , 3885345 , 4748755 , 8547759 , 11656035 , 14246265 , 25643277 , 42738795 , 128216385
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128216384 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128216385 can be divided by 32 positive divisors.
The sum of these divisors (counting 128216385) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101001000110110101000001
3
Ternary
22221021001211000
4
Quaternary
13221012311001
5
Quinary
230310411020
6
Senary
20420042213
8
Octal
751066501
10
Decimal
128216385
12
Duodecimal
36b33369
16
Hexadecimal
7a46d41
20
Vigesimal
20170j5
36
Base36
24c4e9
md5
44c438aefebc578bdea92e803c37d093
sha1
e3da2e0f97a896d69062d025965d3c0cf5990296
sha256
4f961cef28ec270bcdb332a40f603d723f96ba9d2dde245d5da57cb8e9fae5a6
sha512
dad2a68e31d2e972cf300abca8b9a97ecb0625cca77d1c082b6f4091842fc01d7448b409e7976bc21d24e73a5123f38232f0e6dd782229b16a7351f9bdf1b0be
ripemd-160
05e1bda3db4654aba00dcfaa1c76055d2de3af9b
Diameter
256432770
Circumference
805607306.37168
Area
5.1646028276282E+16
Volume
8.8291560602569E+24
Surface area
2.0658411310513E+17
Circumference
805607306.37168
Perimeter
512865540
Area
16439441382468225
Diagonal
181325350.58545
Surface area
98636648294809350
Volume
2.1078057454795E+24
Space diagonal
222077293.18281
Perimeter
384649155
Area
7.1184869306213E+15
Altitude
111038646.59141
Surface area
7.1184869306213E+15
Volume
2.4840728934208E+23
Height
60441783.528483