128808215 is an odd 9-digits composite number following 128808214
and preceding 128808216 . In scientific notation, it is written as 1.28808215 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 103046568 positive integers (up to 128808215) that are relatively prime to 128808215.
128808215 has 4 divisors, whose sum is 154569864
The reverse of 128808215 is 512808821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-eight million eight hundred eight thousand two hundred fifteen
Scientific notation
1.28808215 × 10^8
Engineering notation
1.28808215 × 10^6
Prime Factorization
5 × 25761643
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128808215
Product of the distinct prime numbers
The prime factorization of 128808215 is 5 × 25761643.
Since it has a total of 2 prime factors.
8 , 1 , 36 , 30 , 846 , 519 , 2058 , 9822 , 23120 , 51784 , 877934 , 74852 , 7542397 , 19980 , 15351746 , 36740074 , 13573206 , 20628841 , 6660275792 , 8657394093
n×2
257616430
n×3
386424645
n×4
515232860
n×5
644041075
n÷2
64404107.5
n÷3
42936071.666667
n÷3
32202053.75
n÷5
25761643
n2
16591556251486225
n3
2.137128744826E+24
n4
2.7527973884623E+32
n5
3.5458291786449E+40
2 √n
11349.370687399
3 √n
505.02691096013
4 √n
106.53342521199
5 √n
41.878268051934
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128808214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128808215 can be divided by 4 positive divisors.
The sum of these divisors (counting 128808215) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101011010111010100010111
3
Ternary
22222101010122122
4
Quaternary
13223113110113
5
Quinary
230433330330
6
Senary
20440450155
8
Octal
753272427
10
Decimal
128808215
12
Duodecimal
3717995b
16
Hexadecimal
7ad7517
20
Vigesimal
20510af
36
Base36
24ot1z
md5
37cb90fd72ef66cc8969da48c380626c
sha1
5695e33f762873d227aa3ea8c12fda937a5997d7
sha256
418b30299689d001cf8382cff4b8313e8efd4a73fbeba8d6a29045fa8071df41
sha512
d83de74eef4fd9703518c945c0d8403c4b6aa6a54f81c69235dae99310ca94a06d7037d0a243e70bcacef16a8d441ef8e1da620ed966d13e99cb68c083d43416
ripemd-160
6f2481c970aafec8b0e0e5ea068451a84ec3d85c
Diameter
257616430
Circumference
809325883.93203
Area
5.2123911231291E+16
Volume
8.9519839526947E+24
Surface area
2.0849564492516E+17
Circumference
809325883.93203
Perimeter
515232860
Area
16591556251486225
Diagonal
182162324.59807
Surface area
99549337508917350
Volume
2.137128744826E+24
Space diagonal
223102372.81226
Perimeter
386424645
Area
7.1843546010528E+15
Altitude
111551186.40613
Surface area
7.1843546010528E+15
Volume
2.5186303795586E+23
Height
60720774.866023