28687025 is an odd 8-digits composite number following 28687024
and preceding 28687026 . In scientific notation, it is written as 2.8687025 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 22328640 positive integers (up to 28687025) that are relatively prime to 28687025.
28687025 has 8 divisors, whose sum is 34611624
The reverse of 28687025 is 52078682
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million six hundred eighty-seven thousand twenty-five
Scientific notation
2.8687025 × 10^7
Engineering notation
2.8687025 × 10^6
Prime Factorization
185 × 5 × 31013
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28687025
Product of the distinct prime numbers
The prime factorization of 28687025 is 185 × 5 × 31013.
Since it has a total of 3 prime factors.
2 , 1 , 43 , 40 , 542 , 195 , 4104 , 5573 , 32294 , 50444 , 230530 , 36085 , 4136739 , 66586 , 10627498 , 95932222 , 905527628 , 144773464 , 6426805229 , 6162071417
n×2
57374050
n×3
86061075
n×4
114748100
n×5
143435125
n÷2
14343512.5
n÷3
9562341.6666667
n÷3
7171756.25
n÷5
5737405
n2
822945403350625
n3
2.3607855359554E+22
n4
6.7723913689592E+29
n5
1.9427976051112E+37
2 √n
5356.0269790209
3 √n
306.12244306047
4 √n
73.184882175357
5 √n
31.012523214876
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
-28687024
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 28687025 can be divided by 8 positive divisors.
The sum of these divisors (counting 28687025) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011101010110001
3
Ternary
1222222110012102
4
Quaternary
1231123222301
5
Quinary
24320441100
6
Senary
2502510145
8
Octal
155335261
10
Decimal
28687025
12
Duodecimal
9735355
16
Hexadecimal
1b5bab1
20
Vigesimal
8j5hb5
36
Base36
h2v1t
md5
8030459be4085f7b188b082e0f89aa96
sha1
93fc2c6d9124e48679243b9a0a508fbc104e39d9
sha256
5f9a74447efd07ba396a7ad13cf7602ee98afb1ccd5c3a3da676a725feeb8b59
sha512
048fbfb604b13f0eaea86f277ca804eaed79f9be65ef05aa56b7110ac01f40ef8df44b938a5a059a311892fbacb161ccc622ea441dd7864f5c291405f5611e4a
ripemd-160
6797175b4fd03344ebd9c8df34970dc9f6d92cef
Diameter
57374050
Circumference
180245893.98669
Area
2.5853592334718E+15
Volume
9.8888353286116E+22
Surface area
1.0341436933887E+16
Circumference
180245893.98669
Perimeter
114748100
Area
822945403350625
Diagonal
40569579.819136
Surface area
4937672420103750
Volume
2.3607855359554E+22
Space diagonal
49687384.817999
Perimeter
86061075
Area
3.5634581261464E+14
Altitude
24843692.408999
Surface area
3.5634581261464E+14
Volume
2.7822124356687E+21
Height
13523193.273045