128906372 is an even 9-digits composite number following 128906371
and preceding 128906373 . In scientific notation, it is written as 1.28906372 × 10^8.
The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors.
There are 53752032 positive integers (up to 128906372) that are relatively prime to 128906372.
128906372 has 24 divisors, whose sum is 264782784
The reverse of 128906372 is 273609821
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million nine hundred six thousand three hundred seventy-two
Scientific notation
1.28906372 × 10^8
Engineering notation
1.28906372 × 10^6
Prime Factorization
2 × 2 × 37 × 7 × 124427
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
64453186
Product of the distinct prime numbers
The prime factorization of 128906372 is 2 × 2 × 37 × 7 × 124427.
Since it has a total of 5 prime factors.
5 , 8 , 35 , 32 , 373 , 782 , 17 , 6591 , 47183 , 86232 , 472528 , 327731 , 776224 , 8196587 , 10375246 , 97057720 , 758605355 , 787274291 , 213549168 , 2832111265
n×2
257812744
n×3
386719116
n×4
515625488
n×5
644531860
n÷2
64453186
n÷3
42968790.666667
n÷3
32226593
n÷5
25781274.4
n2
16616852742202384
n3
2.1420182010556E+24
n4
2.7611979505604E+32
n5
3.5593601018058E+40
2 √n
11353.694200567
3 √n
505.15516194137
4 √n
106.5537150951
5 √n
41.884648689597
1 , 2 , 4 , 7 , 14 , 28 , 37 , 74 , 148 , 259 , 518 , 1036 , 124427 , 248854 , 497708 , 870989 , 1741978 , 3483956 , 4603799 , 9207598 , 18415196 , 32226593 , 64453186 , 128906372
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128906371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128906372 can be divided by 24 positive divisors.
The sum of these divisors (counting 128906372) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101011101111010010000100
3
Ternary
22222120010022002
4
Quaternary
13223233102010
5
Quinary
231000000442
6
Senary
20442524432
8
Octal
753572204
10
Decimal
128906372
12
Duodecimal
37206718
16
Hexadecimal
7aef484
20
Vigesimal
205d5ic
36
Base36
24qwsk
md5
0546e45d09b6b2a9a9f6e7f8f16c569d
sha1
df71eb47e551c1fe463743867626b67996024a56
sha256
88292372418738e9c5e8255d75b27eef8b8e69db657088651b336a0722d0a685
sha512
c7a30ebdc03524ba4706f2f00e64e70440423053631ca66f37dcdf1ea530ff728ce11f1f2cf6e0c1898bdf76239d6e7e1394c05d7cd32ac11e9d3a5104788c70
ripemd-160
96a06c247d83184621690acd6abe2c0c359a7b98
Diameter
257812744
Circumference
809942622.55223
Area
5.2203382500686E+16
Volume
8.9724648590557E+24
Surface area
2.0881353000275E+17
Circumference
809942622.55223
Perimeter
515625488
Area
16616852742202384
Diagonal
182301139.55871
Surface area
99701116453214304
Volume
2.1420182010556E+24
Space diagonal
223272385.72337
Perimeter
386719116
Area
7.1953083028462E+15
Altitude
111636192.86169
Surface area
7.1953083028462E+15
Volume
2.5243926589857E+23
Height
60767046.51957