28688532 is an even 8-digits composite number following 28688531
and preceding 28688533 . In scientific notation, it is written as 2.8688532 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors.
There are 9562840 positive integers (up to 28688532) that are relatively prime to 28688532.
28688532 has 12 divisors, whose sum is 66939936
The reverse of 28688532 is 23588682
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million six hundred eighty-eight thousand five hundred thirty-two
Scientific notation
2.8688532 × 10^7
Engineering notation
2.8688532 × 10^6
Prime Factorization
2 × 2 × 3 × 2390711
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
14344266
Product of the distinct prime numbers
The prime factorization of 28688532 is 2 × 2 × 3 × 2390711.
Since it has a total of 4 prime factors.
4 , 7 , 29 , 33 , 798 , 330 , 6284 , 903 , 28274 , 40055 , 562471 , 383665 , 944128 , 7321841 , 49109089 , 66450437 , 4388450 , 964136278 , 5857804920 , 1690972670
n×2
57377064
n×3
86065596
n×4
114754128
n×5
143442660
n÷2
14344266
n÷3
9562844
n÷3
7172133
n÷5
5737706.4
n2
823031868315024
n3
2.3611576091175E+22
n4
6.7738145626212E+29
n5
1.9433079584182E+37
2 √n
5356.1676598105
3 √n
306.12780342163
4 √n
73.185843301902
5 √n
31.012849040858
1 , 2 , 3 , 4 , 6 , 12 , 2390711 , 4781422 , 7172133 , 9562844 , 14344266 , 28688532
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28688531
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28688532 can be divided by 12 positive divisors.
The sum of these divisors (counting 28688532) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101101011100000010010100
3
Ternary
1222222112021020
4
Quaternary
1231130002110
5
Quinary
24321013112
6
Senary
2502521140
8
Octal
155340224
10
Decimal
28688532
12
Duodecimal
97361b0
16
Hexadecimal
1b5c094
20
Vigesimal
8j616c
36
Base36
h2w7o
md5
6e9cfae7407eaa803a4dfce6d1d48e05
sha1
8ab73b97d50743da92a3a5edcea85b900f630ee0
sha256
fe84debc541b2ecfc30711fe812d1a2817796eb5754bdbe8903fb37e6f19b160
sha512
b515b1d4e152dc7e1778d8469c76025f61e8761e5b15a13fa96a72aa2d7eff29210bbb21a34446b5565dfc95fe1ddb3e37fa645b6740b265ce22c278dd05f9dd
ripemd-160
acb7e64b4435121aa42c81ef3b28a894cd39805f
Diameter
57377064
Circumference
180255362.74695
Area
2.5856308711688E+15
Volume
9.8903938650284E+22
Surface area
1.0342523484675E+16
Circumference
180255362.74695
Perimeter
114754128
Area
823031868315024
Diagonal
40571711.038975
Surface area
4938191209890144
Volume
2.3611576091175E+22
Space diagonal
49689995.018566
Perimeter
86065596
Area
3.5638325304249E+14
Altitude
24844997.509283
Surface area
3.5638325304249E+14
Volume
2.7826509280954E+21
Height
13523903.679658