128522985 is an odd 9-digits composite number following 128522984
and preceding 128522986 . In scientific notation, it is written as 1.28522985 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 68309312 positive integers (up to 128522985) that are relatively prime to 128522985.
128522985 has 16 divisors, whose sum is 206345664
The reverse of 128522985 is 589225821
Previous prime number is 293
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred twenty-eight million five hundred twenty-two thousand nine hundred eighty-five
Scientific notation
1.28522985 × 10^8
Engineering notation
1.28522985 × 10^6
Prime Factorization
5 × 3 × 293 × 29243
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
128522985 Product of the distinct prime numbers
The prime factorization of 128522985 is 5 × 3 × 293 × 29243.
Since it has a total of 4 prime factors.
3 , 2 , 60 , 72 , 308 , 797 , 352 , 1823 , 193 , 87913 , 720397 , 140846 , 3861184 , 25385 , 22529604 , 93041645 , 96486951 , 609926565 , 6356009352 , 8507100744
n×2
257045970
n×3
385568955
n×4
514091940
n×5
642614925
n÷2
64261492.5
n÷3
42840995
n÷3
32130746.25
n÷5
25704597
n2
16518157673310225
n3
2.1229629308745E+24
n4
2.7284953292034E+32
n5
3.5067436426778E+40
2 √n11336.797828311
3 √n504.6538620751
4 √n106.47439987298
5 √n41.859704744127
1 , 3 , 5 , 15 , 293 , 879 , 1465 , 4395 , 29243 , 87729 , 146215 , 438645 , 8568199 , 25704597 , 42840995 , 128522985
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
-128522984 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 128522985 can be divided by 16 positive divisors.
The sum of these divisors (counting 128522985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010010001101011101001
3
Ternary
22221211122101120
4
Quaternary
13222101223221
5
Quinary
230400213420
6
Senary
20430405453
8
Octal
752215351
10
Decimal
128522985
12
Duodecimal
37060889
16
Hexadecimal
7a91ae9
20
Vigesimal
2035795
36
Base36
24ioyx
md5
376cc4884f883b602921af76c822aefb
sha1
203bbebf3b5c6f944eb1de04611e470bd7d24c8e
sha256
f04b5f0a955f70954a912eab3ea8c34209804276893452c3ec328bafbce19065
sha512
d84d8ced881e292d4098d33c4bb12226926e4583875c23080b68804156496705a5ae172f84e05d434ad5816cb6731fc028a726c25f54aa782ac98d5aa579cf81
ripemd-160
42e4bab99f1498345706bcbabe0c827087d0748d
Diameter
257045970
Circumference
807533730.98686
Area
5.1893322797309E+16
Volume
8.8926463299716E+24
Surface area
2.0757329118924E+17
Circumference
807533730.98686
Perimeter
514091940
Area
16518157673310225
Diagonal
181758948.46367
Surface area
99108946039861350
Volume
2.1229629308745E+24
Space diagonal
222608339.96041
Perimeter
385568955
Area
7.1525720844018E+15
Altitude
111304169.98021
Surface area
7.1525720844018E+15
Volume
2.501935807715E+23
Height
60586316.154558