128012969 is an odd 9-digits composite number following 128012968
and preceding 128012970 . In scientific notation, it is written as 1.28012969 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 109725396 positive integers (up to 128012969) that are relatively prime to 128012969.
128012969 has 4 divisors, whose sum is 146300544
The reverse of 128012969 is 969210821
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million twelve thousand nine hundred sixty-nine
Scientific notation
1.28012969 × 10^8
Engineering notation
1.28012969 × 10^6
Prime Factorization
7 × 18287567
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128012969
Product of the distinct prime numbers
The prime factorization of 128012969 is 7 × 18287567.
Since it has a total of 2 prime factors.
8 , 1 , 15 , 48 , 141 , 712 , 3445 , 58 , 19300 , 71258 , 263904 , 19720 , 46328 , 2335002 , 15272466 , 18950833 , 612586645 , 434517162 , 2099682458 , 6610070182
n×2
256025938
n×3
384038907
n×4
512051876
n×5
640064845
n÷2
64006484.5
n÷3
42670989.666667
n÷3
32003242.25
n÷5
25602593.8
n2
16387320232194961
n3
2.097789516877E+24
n4
2.6854426439251E+32
n5
3.4377148592806E+40
2 √n
11314.281638708
3 √n
503.98544012907
4 √n
106.36861209355
5 √n
41.826429625513
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128012968
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128012969 can be divided by 4 positive divisors.
The sum of these divisors (counting 128012969) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101000010101001010101001
3
Ternary
22220212201210002
4
Quaternary
13220111022221
5
Quinary
230232403334
6
Senary
20411432345
8
Octal
750251251
10
Decimal
128012969
12
Duodecimal
36a556b5
16
Hexadecimal
7a152a9
20
Vigesimal
2001c89
36
Base36
247rft
md5
a5e747656a6e77d28764d8a42dedbe93
sha1
5b437fbceeb0cdc7c3711e85b9be2959bcd38276
sha256
0e0ebf1ac37876ee0a2d9c34b77d50b4dfc83c95d3279f4933d4f84709e5761f
sha512
4ce76f3682f7b89879986ca013b36be6c0114d91d7b8119dd9576360d74fb2c0ee06685060e866e1185e5679740a3dce695de02ecb74725676acfea05ccaec79
ripemd-160
c56e640e99c6a9e02d4da915665da41f832dce17
Diameter
256025938
Circumference
804329205.94924
Area
5.1482284853487E+16
Volume
8.7872001799981E+24
Surface area
2.0592913941395E+17
Circumference
804329205.94924
Perimeter
512051876
Area
16387320232194961
Diagonal
181037676.91945
Surface area
98323921393169766
Volume
2.097789516877E+24
Space diagonal
221724966.33574
Perimeter
384038907
Area
7.0959178105158E+15
Altitude
110862483.16787
Surface area
7.0959178105158E+15
Volume
2.4722686548097E+23
Height
60345892.306482