128866072 is an even 9-digits composite number following 128866071
and preceding 128866073 . In scientific notation, it is written as 1.28866072 × 10^8.
The sum of its digits is 40. It has a total of 4 prime factors and 8 positive divisors.
There are 64433032 positive integers (up to 128866072) that are relatively prime to 128866072.
128866072 has 8 divisors, whose sum is 241623900
The reverse of 128866072 is 270668821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-eight million eight hundred sixty-six thousand seventy-two
Scientific notation
1.28866072 × 10^8
Engineering notation
1.28866072 × 10^6
Prime Factorization
2 × 2 × 2 × 16108259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
32216518
Product of the distinct prime numbers
The prime factorization of 128866072 is 2 × 2 × 2 × 16108259.
Since it has a total of 4 prime factors.
3 , 1 , 53 , 4 , 942 , 514 , 1555 , 112 , 3299 , 37946 , 728707 , 352653 , 697057 , 3405770 , 67253292 , 25833608 , 803780049 , 246393016 , 8539085490 , 7392265046
n×2
257732144
n×3
386598216
n×4
515464288
n×5
644330360
n÷2
64433036
n÷3
42955357.333333
n÷3
32216518
n÷5
25773214.4
n2
16606464512709184
n3
2.1400098515602E+24
n4
2.7577466361187E+32
n5
3.5537997656783E+40
2 √n
11351.919309086
3 √n
505.10251423394
4 √n
106.5453861464
5 √n
41.882029482436
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
-128866071
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 128866072 can be divided by 8 positive divisors.
The sum of these divisors (counting 128866072) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101011100101011100011000
3
Ternary
22222111002000111
4
Quaternary
13223211130120
5
Quinary
230442203242
6
Senary
20442014104
8
Octal
753453430
10
Decimal
128866072
12
Duodecimal
371a7334
16
Hexadecimal
7ae5718
20
Vigesimal
205853c
36
Base36
24q1p4
md5
b2144bed12c978c5c1be6fe990ca75d3
sha1
6b71a46b8c5fc63baf2e2f9c01eedd21613e8dfa
sha256
a0dd5946be77888700dfb439f881a6553baa645452aad33a8b3e49e44510faf4
sha512
236aaf69bb79693e330c8a28930a30b81c6d02e1b44912db8f3bd9e7e9119bba7d31b898d7c57c311bba1ad984c11e320b9fcc52b817b4845ecf589fd7cc3f72
ripemd-160
c2efe3a17f140a52e09795bcdf7be02c82da9061
Diameter
257732144
Circumference
809689410.18435
Area
5.2170746915227E+16
Volume
8.9640523043619E+24
Surface area
2.0868298766091E+17
Circumference
809689410.18435
Perimeter
515464288
Area
16606464512709184
Diagonal
182244146.75215
Surface area
99638787076255104
Volume
2.1400098515602E+24
Space diagonal
223202584.07583
Perimeter
386598216
Area
7.1908100675255E+15
Altitude
111601292.03791
Surface area
7.1908100675255E+15
Volume
2.5220257964071E+23
Height
60748048.917383