128091405 is an odd 9-digits composite number following 128091404
and preceding 128091406 . In scientific notation, it is written as 1.28091405 × 10^8.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 60883200 positive integers (up to 128091405) that are relatively prime to 128091405.
128091405 has 32 divisors, whose sum is 228332160
The reverse of 128091405 is 504190821
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-eight million ninety-one thousand four hundred five
Scientific notation
1.28091405 × 10^8
Engineering notation
1.28091405 × 10^6
Prime Factorization
3 × 5 × 13 × 29 × 22651
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
128091405
Product of the distinct prime numbers
The prime factorization of 128091405 is 3 × 5 × 13 × 29 × 22651.
Since it has a total of 5 prime factors.
3 , 2 , 81 , 82 , 749 , 799 , 8901 , 340 , 56896 , 61732 , 106416 , 61495 , 6513002 , 9502425 , 83547807 , 55479710 , 365245055 , 24062827 , 1876608355 , 7381191591
n×2
256182810
n×3
384274215
n×4
512365620
n×5
640457025
n÷2
64045702.5
n÷3
42697135
n÷3
32022851.25
n÷5
25618281
n2
16407408034874025
n3
2.1016479475953E+24
n4
2.6920303842285E+32
n5
3.4482595421852E+40
2 √n
11317.747346535
3 √n
504.08835295974
4 √n
106.38490187303
5 √n
41.831553940802
1 , 3 , 5 , 13 , 15 , 29 , 39 , 65 , 87 , 145 , 195 , 377 , 435 , 1131 , 1885 , 5655 , 22651 , 67953 , 113255 , 294463 , 339765 , 656879 , 883389 , 1472315 , 1970637 , 3284395 , 4416945 , 8539427 , 9853185 , 25618281 , 42697135 , 128091405
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
-128091404
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 128091405 can be divided by 32 positive divisors.
The sum of these divisors (counting 128091405) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101000101000010100001101
3
Ternary
22221000201101010
4
Quaternary
13220220110031
5
Quinary
230242411110
6
Senary
20413235433
8
Octal
750502415
10
Decimal
128091405
12
Duodecimal
36a92b79
16
Hexadecimal
7a2850d
20
Vigesimal
200b8a5
36
Base36
249fyl
md5
4f69e0fbce0351310a3add0375a0cf88
sha1
ce7c2db145ce6fd75bb2ef860dc9d16138507dff
sha256
ece17d6143e4ad12f7c16f1203f7cc136b1cf31689823c8e9f3ec4ffe0256627
sha512
ad95988b1ac8e8da4ba481002da278943462146866e0040136b499043de9dd39ed5dd12d66c9ae72158dd8151fb4cfe088d409870fe8a94f0d1e703c7ff59001
ripemd-160
4cf23df54af6c46153351bbc2c548399138a3a07
Diameter
256182810
Circumference
804822033.87199
Area
5.154539254681E+16
Volume
8.8033623367966E+24
Surface area
2.0618157018724E+17
Circumference
804822033.87199
Perimeter
512365620
Area
16407408034874025
Diagonal
181148602.17442
Surface area
98444448209244150
Volume
2.1016479475953E+24
Space diagonal
221860821.47288
Perimeter
384274215
Area
7.1046160842289E+15
Altitude
110930410.73644
Surface area
7.1046160842289E+15
Volume
2.476815859019E+23
Height
60382867.391475