128439220 is an even 9-digits composite number following 128439219
and preceding 128439221 . In scientific notation, it is written as 1.28439220 × 10^8.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 40648320 positive integers (up to 128439220) that are relatively prime to 128439220.
128439220 has 24 divisors, whose sum is 248978016
The reverse of 128439220 is 022934821
Previous prime number is 13
Is Prime? no Number parity even Number length 9 Sum of Digits 31 Digital Root 4
Name
one hundred twenty-eight million four hundred thirty-nine thousand two hundred twenty
Scientific notation
1.28439220 × 10^8
Engineering notation
1.28439220 × 10^6
Prime Factorization
2 × 2 × 35 × 13 × 70571
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
64219610 Product of the distinct prime numbers
The prime factorization of 128439220 is 2 × 2 × 35 × 13 × 70571.
Since it has a total of 5 prime factors.
3 , 10 , 30 , 9 , 347 , 822 , 2182 , 7040 , 70235 , 22884 , 955751 , 621981 , 1216042 , 2738801 , 89781946 , 19309138 , 574824061 , 727187443 , 6392313942 , 6752628027
n×2
256878440
n×3
385317660
n×4
513756880
n×5
642196100
n÷2
64219610
n÷3
42813073.333333
n÷3
32109805
n÷5
25687844
n2
16496633234208400
n3
2.1188147052278E+24
n4
2.7213890806399E+32
n5
3.495330908339E+40
2 √n11333.102840793
3 √n504.54420200725
4 √n106.45704692877
5 √n41.854246899151
1 , 2 , 4 , 13 , 26 , 35 , 52 , 70 , 140 , 455 , 910 , 1820 , 70571 , 141142 , 282284 , 917423 , 1834846 , 2469985 , 3669692 , 4939970 , 9879940 , 32109805 , 64219610 , 128439220
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
-128439219 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 128439220 can be divided by 24 positive divisors.
The sum of these divisors (counting 128439220) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101001111101001110110100
3
Ternary
22221200101111011
4
Quaternary
13221331032310
5
Quinary
230340023340
6
Senary
20424522004
8
Octal
751751664
10
Decimal
128439220
12
Duodecimal
37020304
16
Hexadecimal
7a7d3b4
20
Vigesimal
202ei10
36
Base36
24gwc4
md5
c77b871cdfe22f4a2791f1c5f8d83738
sha1
fd7a18f39c6bbf8fcdfee4842d88ed04df84071a
sha256
9c69c11868e0d650a26d33f86b9be623db8ffcf90421a73cfc693aa02390da14
sha512
9f41c0baaed0a3b605eecf4d01ea1b47e5de3e2277de54788841daf9078acc86c0c8a271c1fb3adce5bf819d855f02f4b192d9b6d5204a5afac771ac786f91a4
ripemd-160
08a5b5289b0b642544be39ec68346e69ae93d0ba
Diameter
256878440
Circumference
807007419.96961
Area
5.1825701777554E+16
Volume
8.8752702830156E+24
Surface area
2.0730280711022E+17
Circumference
807007419.96961
Perimeter
513756880
Area
16496633234208400
Diagonal
181640486.86462
Surface area
98979799405250400
Volume
2.1188147052278E+24
Space diagonal
222463254.72452
Perimeter
385317660
Area
7.1432517288696E+15
Altitude
111231627.36226
Surface area
7.1432517288696E+15
Volume
2.4970470769073E+23
Height
60546828.954874