128220405 is an odd 9-digits composite number following 128220404
and preceding 128220406 . In scientific notation, it is written as 1.28220405 × 10^8.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 68035520 positive integers (up to 128220405) that are relatively prime to 128220405.
128220405 has 16 divisors, whose sum is 206198784
The reverse of 128220405 is 504022821
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-eight million two hundred twenty thousand four hundred five
Scientific notation
1.28220405 × 10^8
Engineering notation
1.28220405 × 10^6
Prime Factorization
3 × 5 × 197 × 43391
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128220405
Product of the distinct prime numbers
The prime factorization of 128220405 is 3 × 5 × 197 × 43391.
Since it has a total of 4 prime factors.
8 , 9 , 21 , 29 , 820 , 592 , 4672 , 4336 , 20333 , 10411 , 392978 , 843362 , 4542421 , 561488 , 64191499 , 27274175 , 187718998 , 728105578 , 5366411888 , 2474602061
n×2
256440810
n×3
384661215
n×4
512881620
n×5
641102025
n÷2
64110202.5
n÷3
42740135
n÷3
32055101.25
n÷5
25644081
n2
16440472258364025
n3
2.1080040113587E+24
n4
2.7028912807804E+32
n5
3.4656581469263E+40
2 √n
11323.444926346
3 √n
504.25751752413
4 √n
106.41167664475
5 √n
41.8399762045
1 , 3 , 5 , 15 , 197 , 591 , 985 , 2955 , 43391 , 130173 , 216955 , 650865 , 8548027 , 25644081 , 42740135 , 128220405
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
-128220404
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 128220405 can be divided by 16 positive divisors.
The sum of these divisors (counting 128220405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101001000111110011110101
3
Ternary
22221021021022220
4
Quaternary
13221013303311
5
Quinary
230311023110
6
Senary
20420112553
8
Octal
751076365
10
Decimal
128220405
12
Duodecimal
36b35759
16
Hexadecimal
7a47cf5
20
Vigesimal
2017b05
36
Base36
24c7hx
md5
95d2999e6b6aeb7477882362e37ccba1
sha1
4dcc37d55f4c4aad4be51c8d77583bb753b7bd02
sha256
2622461e6508007f84d60f0e8b8fbf244efb3468d9e67ce06051726093cfdd73
sha512
ac64f8fa477bd5add8f6b4b37f69889bcc3b903e5f751d1a3d6528ca9b8df30970233599fdbf7f6c81d05ed3c9a3b340b051c17e26d67e035fce817e0f56a1e4
ripemd-160
7394f1d67ae6c661494b327db74db81c6e059dbf
Diameter
256440810
Circumference
805632564.77662
Area
5.1649266868423E+16
Volume
8.8299865544297E+24
Surface area
2.0659706747369E+17
Circumference
805632564.77662
Perimeter
512881620
Area
16440472258364025
Diagonal
181331035.72397
Surface area
98642833550184150
Volume
2.1080040113587E+24
Space diagonal
222084256.02706
Perimeter
384661215
Area
7.1189333129783E+15
Altitude
111042128.01353
Surface area
7.1189333129783E+15
Volume
2.4843065520003E+23
Height
60443678.574657