128839672 is an even 9-digits composite number following 128839671
and preceding 128839673 . In scientific notation, it is written as 1.28839672 × 10^8.
The sum of its digits is 46. It has a total of 5 prime factors and 16 positive divisors.
There are 59464416 positive integers (up to 128839672) that are relatively prime to 128839672.
128839672 has 16 divisors, whose sum is 260157240
The reverse of 128839672 is 276938821
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-eight million eight hundred thirty-nine thousand six hundred seventy-two
Scientific notation
1.28839672 × 10^8
Engineering notation
1.28839672 × 10^6
Prime Factorization
2 × 2 × 2 × 13 × 1238843
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32209918
Product of the distinct prime numbers
The prime factorization of 128839672 is 2 × 2 × 2 × 13 × 1238843.
Since it has a total of 5 prime factors.
5 , 3 , 53 , 16 , 978 , 480 , 2927 , 7599 , 933 , 55835 , 646982 , 605624 , 1530727 , 3634146 , 92509487 , 56623978 , 863310884 , 971091901 , 4748116427 , 3852667950
n×2
257679344
n×3
386519016
n×4
515358688
n×5
644198360
n÷2
64419836
n÷3
42946557.333333
n÷3
32209918
n÷5
25767934.4
n2
16599661081067584
n3
2.1386948889959E+24
n4
2.7554874800631E+32
n5
3.5501610313144E+40
2 √n
11350.756450563
3 √n
505.06801946256
4 √n
106.53992890256
5 √n
41.880313319014
1 , 2 , 4 , 8 , 13 , 26 , 52 , 104 , 1238843 , 2477686 , 4955372 , 9910744 , 16104959 , 32209918 , 64419836 , 128839672
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128839671
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128839672 can be divided by 16 positive divisors.
The sum of these divisors (counting 128839672) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101011011110111111111000
3
Ternary
22222102201210201
4
Quaternary
13223132333320
5
Quinary
230440332142
6
Senary
20441251544
8
Octal
753367770
10
Decimal
128839672
12
Duodecimal
37193bb4
16
Hexadecimal
7adeff8
20
Vigesimal
2054j3c
36
Base36
24phbs
md5
6f01771d40db5daa660275aa5cf8afec
sha1
e29656331019c315691ad75f40ebf4c3e3fc906f
sha256
cd689952a3b9f8799ef0af99575dbabb1b7f22cc668884c4373c977b2252c831
sha512
f54ef9ad58afaa068d1721514fb04e17d9e5cb4799de1a9e217b7ca6fe3d9edfeb9e589e1345ef724bb804ca20ec44296498ae58e7173485b6c32c41ed04736a
ripemd-160
878c071effa62aff83f0eef803cf3f3dfb454f62
Diameter
257679344
Circumference
809523534.09224
Area
5.2149373304362E+16
Volume
8.9585442020528E+24
Surface area
2.0859749321745E+17
Circumference
809523534.09224
Perimeter
515358688
Area
16599661081067584
Diagonal
182206811.5141
Surface area
99597966486405504
Volume
2.1386948889959E+24
Space diagonal
223156857.93451
Perimeter
386519016
Area
7.1878640952082E+15
Altitude
111578428.96725
Surface area
7.1878640952082E+15
Volume
2.5204760981634E+23
Height
60735603.838034