128488971 is an odd 9-digits composite number following 128488970
and preceding 128488972 . In scientific notation, it is written as 1.28488971 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 75631776 positive integers (up to 128488971) that are relatively prime to 128488971.
128488971 has 16 divisors, whose sum is 192519936
The reverse of 128488971 is 179884821
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
one hundred twenty-eight million four hundred eighty-eight thousand nine hundred seventy-one
Scientific notation
1.28488971 × 10^8
Engineering notation
1.28488971 × 10^6
Prime Factorization
3 × 23 × 13 × 143243
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128488971
Product of the distinct prime numbers
The prime factorization of 128488971 is 3 × 23 × 13 × 143243.
Since it has a total of 4 prime factors.
6 , 9 , 19 , 64 , 189 , 42 , 6662 , 9902 , 18919 , 6383 , 457163 , 466133 , 1430739 , 529021 , 96095439 , 12219169 , 238041510 , 263996440 , 2378301473 , 1585073447
n×2
256977942
n×3
385466913
n×4
513955884
n×5
642444855
n÷2
64244485.5
n÷3
42829657
n÷3
32122242.75
n÷5
25697794.2
n2
16509415668638841
n3
2.1212778310747E+24
n4
2.725608057199E+32
n5
3.5021057461881E+40
2 √n
11335.29756998
3 √n
504.60933875249
4 √n
106.46735448005
5 √n
41.857488849829
1 , 3 , 13 , 23 , 39 , 69 , 299 , 897 , 143243 , 429729 , 1862159 , 3294589 , 5586477 , 9883767 , 42829657 , 128488971
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
-128488970
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 128488971 can be divided by 16 positive divisors.
The sum of these divisors (counting 128488971) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010001001011000001011
3
Ternary
22221202220201210
4
Quaternary
13222021120023
5
Quinary
230343121341
6
Senary
20425544203
8
Octal
752113013
10
Decimal
128488971
12
Duodecimal
37045063
16
Hexadecimal
7a8960b
20
Vigesimal
203128b
36
Base36
24hyq3
md5
9013137165b997247ae77180ef79b8c7
sha1
cd8b748fc6cc99b6457a356ddfe9e6916193d586
sha256
cbb21887b2b61d8c89476f755a29ff13d0f747df4f7c576a0df80a188466e16d
sha512
2ccfadfbaa07d7ceb0a6a321068cc7155d3b822d7fe3c34ee6cd9907fea21dc0581a7c31e6ab134d5458bfc3bed80aff946321f7e6c7a37a655413fa75f8b7f4
ripemd-160
5b423d8e965e1a9b07a4417f1cd352565e7ce05e
Diameter
256977942
Circumference
807320014.72182
Area
5.1865858979656E+16
Volume
8.8855878004361E+24
Surface area
2.0746343591862E+17
Circumference
807320014.72182
Perimeter
513955884
Area
16509415668638841
Diagonal
181710845.40356
Surface area
99056494011833046
Volume
2.1212778310747E+24
Space diagonal
222549425.98424
Perimeter
385466913
Area
7.148786685339E+15
Altitude
111274712.99212
Surface area
7.148786685339E+15
Volume
2.499949898556E+23
Height
60570281.801188