128220990 is an even 9-digits composite number following 128220989
and preceding 128220991 . In scientific notation, it is written as 1.28220990 × 10^8.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 34139424 positive integers (up to 128220990) that are relatively prime to 128220990.
128220990 has 32 divisors, whose sum is 308206080
The reverse of 128220990 is 099022821
Previous prime number is 727
Is Prime? no Number parity even Number length 9 Sum of Digits 33 Digital Root 6
Name
one hundred twenty-eight million two hundred twenty thousand nine hundred ninety
Scientific notation
1.28220990 × 10^8
Engineering notation
1.28220990 × 10^6
Prime Factorization
2 × 3 × 5 × 727 × 5879
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
128220990 Product of the distinct prime numbers
The prime factorization of 128220990 is 2 × 3 × 5 × 727 × 5879.
Since it has a total of 5 prime factors.
9 , 6 , 1 , 57 , 166 , 791 , 3281 , 1065 , 65976 , 71975 , 7029 , 402684 , 5597545 , 7912380 , 22664860 , 8229504 , 338374112 , 611271473 , 9612830280 , 7781744638
n×2
256441980
n×3
384662970
n×4
512883960
n×5
641104950
n÷2
64110495
n÷3
42740330
n÷3
32055247.5
n÷5
25644198
n2
16440622276580100
n3
2.1080328645192E+24
n4
2.7029406084118E+32
n5
3.4657372072177E+40
2 √n11323.470757678
3 √n504.25828440726
4 √n106.4117980192
5 √n41.840014383043
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 727 , 1454 , 2181 , 3635 , 4362 , 5879 , 7270 , 10905 , 11758 , 17637 , 21810 , 29395 , 35274 , 58790 , 88185 , 176370 , 4274033 , 8548066 , 12822099 , 21370165 , 25644198 , 42740330 , 64110495 , 128220990
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128220989 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128220990 can be divided by 32 positive divisors.
The sum of these divisors (counting 128220990) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101001000111111100111110
3
Ternary
22221021022010120
4
Quaternary
13221013330332
5
Quinary
230311032430
6
Senary
20420115410
8
Octal
751077476
10
Decimal
128220990
12
Duodecimal
36b35b66
16
Hexadecimal
7a47f3e
20
Vigesimal
2017c9a
36
Base36
24c7y6
md5
1f533e2dbea5f5ed7b9169746869933e
sha1
35548bd79a03a28ed81304e519cb07e4d565bc06
sha256
f98d19675afe1872759b7fb73bda24589eaa2c5361c858ac9807d5f4ff410487
sha512
f9a3db5081921aa509de9f7d3da529e0d4db69971f540a942c244dda4c2e9642c2a58a4fd35c4dd9d2f28f0e5d103e5c86e8a2c92db0e939749fbf2000405e4a
ripemd-160
abbfdd0d6a334cf8fad00b4bda6da3f66ec553be
Diameter
256441980
Circumference
805636240.44002
Area
5.1649738164549E+16
Volume
8.8301074142656E+24
Surface area
2.0659895265819E+17
Circumference
805636240.44002
Perimeter
512883960
Area
16440622276580100
Diagonal
181331863.0389
Surface area
98643733659480600
Volume
2.1080328645192E+24
Space diagonal
222085269.27678
Perimeter
384662970
Area
7.1189982727714E+15
Altitude
111042634.63839
Surface area
7.1189982727714E+15
Volume
2.484340555776E+23
Height
60443954.346302