128865488 is an even 9-digits composite number following 128865487
and preceding 128865489 . In scientific notation, it is written as 1.28865488 × 10^8.
The sum of its digits is 50. It has a total of 6 prime factors and 20 positive divisors.
There are 63961344 positive integers (up to 128865488) that are relatively prime to 128865488.
128865488 has 20 divisors, whose sum is 251503620
The reverse of 128865488 is 884568821
Previous prime number is 137
Is Prime? no Number parity even Number length 9 Sum of Digits 50 Digital Root 5
Name
one hundred twenty-eight million eight hundred sixty-five thousand four hundred eighty-eight
Scientific notation
1.28865488 × 10^8
Engineering notation
1.28865488 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 137 × 58789
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
16108186 Product of the distinct prime numbers
The prime factorization of 128865488 is 2 × 2 × 2 × 2 × 137 × 58789.
Since it has a total of 6 prime factors.
4 , 8 , 17 , 45 , 842 , 583 , 8181 , 3012 , 59327 , 91588 , 993163 , 721856 , 6039938 , 9763561 , 25099216 , 46988201 , 996589216 , 180076435 , 2541303844 , 7805853303
n×2
257730976
n×3
386596464
n×4
515461952
n×5
644327440
n÷2
64432744
n÷3
42955162.666667
n÷3
32216372
n÷5
25773097.6
n2
16606313997478144
n3
2.1399807571663E+24
n4
2.7576966458284E+32
n5
3.5537192402064E+40
2 √n11351.893586534
3 √n505.10175121874
4 √n106.54526543462
5 √n41.881991521863
1 , 2 , 4 , 8 , 16 , 137 , 274 , 548 , 1096 , 2192 , 58789 , 117578 , 235156 , 470312 , 940624 , 8054093 , 16108186 , 32216372 , 64432744 , 128865488
20 divisors
τ Total Divisors
20 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128865487 Sum of the proper positive divisors of n
A Arithmetic Mean
0.05 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
20 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128865488 can be divided by 20 positive divisors.
The sum of these divisors (counting 128865488) is 1, the average is 0.05.
Base
System
Value
2
Binary
111101011100101010011010000
3
Ternary
22222111001012212
4
Quaternary
13223211103100
5
Quinary
230442143423
6
Senary
20442011252
8
Octal
753452320
10
Decimal
128865488
12
Duodecimal
371a6b28
16
Hexadecimal
7ae54d0
20
Vigesimal
20583e8
36
Base36
24q18w
md5
f19a784eb485c3aee72455ed54b5abe9
sha1
090e201d103a28862d95e10417291a68f11743d7
sha256
9b0762841c1254d3018cee00026d3b3a8bf3bac5c2096c4aa5b79455be25672d
sha512
1e528fc415c34ddb3bc24aefba1bb838a527659def19f16ad35eef4f5facb2ad1332dc1d0294e019e55ce0a1c67f0d82c08996cb4e1e61c74ca9b544ee310042
ripemd-160
a9f9e684acbbc61d7e8e24597a2739ab8db2adaa
Diameter
257730976
Circumference
809685740.80413
Area
5.2170274057683E+16
Volume
8.9639304340494E+24
Surface area
2.0868109623073E+17
Circumference
809685740.80413
Perimeter
515461952
Area
16606313997478144
Diagonal
182243320.85143
Surface area
99637883984868864
Volume
2.1399807571663E+24
Space diagonal
223201572.55816
Perimeter
386596464
Area
7.1907448925186E+15
Altitude
111600786.27908
Surface area
7.1907448925186E+15
Volume
2.521991508335E+23
Height
60747773.617142