128957489 is an odd 9-digits composite number following 128957488
and preceding 128957490 . In scientific notation, it is written as 1.28957489 × 10^8.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 124675200 positive integers (up to 128957489) that are relatively prime to 128957489.
128957489 has 8 divisors, whose sum is 133248000
The reverse of 128957489 is 984759821
Previous prime number is 1999
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 53
Digital Root 8
Name
one hundred twenty-eight million nine hundred fifty-seven thousand four hundred eighty-nine
Scientific notation
1.28957489 × 10^8
Engineering notation
1.28957489 × 10^6
Prime Factorization
31 × 1999 × 2081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128957489
Product of the distinct prime numbers
The prime factorization of 128957489 is 31 × 1999 × 2081.
Since it has a total of 3 prime factors.
5 , 4 , 53 , 53 , 918 , 781 , 9336 , 5898 , 33116 , 38242 , 300154 , 895624 , 8142051 , 8179442 , 70532812 , 88124350 , 954342860 , 111278257 , 4492061539 , 5242773636
n×2
257914978
n×3
386872467
n×4
515829956
n×5
644787445
n÷2
64478744.5
n÷3
42985829.666667
n÷3
32239372.25
n÷5
25791497.8
n2
16630033969185121
n3
2.1445674226508E+24
n4
2.7655802981625E+32
n5
3.5664229087891E+40
2 √n
11355.945094971
3 √n
505.22192513696
4 √n
106.56427682376
5 √n
41.887969980906
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128957488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128957489 can be divided by 8 positive divisors.
The sum of these divisors (counting 128957489) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101011111011110000110001
3
Ternary
22222122201102022
4
Quaternary
13223323300301
5
Quinary
231003114424
6
Senary
20444001225
8
Octal
753736061
10
Decimal
128957489
12
Duodecimal
37230215
16
Hexadecimal
7afbc31
20
Vigesimal
205jde9
36
Base36
24s08h
md5
a57c84f962875b6e0dda3d64c6ca8dac
sha1
474d20c2aa93d799bde2218c418c6ed029fda6ef
sha256
107f985f291b0dba88a6404bfc6dd4e7ef40b65e19c3b72e0dc86f384dea09c9
sha512
e2b45bd9b0373e8cb3b7e7bac2176b822273561ea0ee8415807f41e5a126dae1b0192dd41232fca4e8597a24282e322b5f3c0632504cec3590034436e98d0f1e
ripemd-160
8bf0d55a1f849d2240bd92cf34b32d37fabc96cf
Diameter
257914978
Circumference
810263800.13557
Area
5.2244792546541E+16
Volume
8.9831430135037E+24
Surface area
2.0897917018616E+17
Circumference
810263800.13557
Perimeter
515829956
Area
16630033969185121
Diagonal
182373429.91338
Surface area
99780203815110726
Volume
2.1445674226508E+24
Space diagonal
223360922.9645
Perimeter
386872467
Area
7.2010159415562E+15
Altitude
111680461.48225
Surface area
7.2010159415562E+15
Volume
2.5273969454469E+23
Height
60791143.30446