28542989 is an odd 8-digits composite number following 28542988
and preceding 28542990 . In scientific notation, it is written as 2.8542989 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 27558720 positive integers (up to 28542989) that are relatively prime to 28542989.
28542989 has 4 divisors, whose sum is 29527260
The reverse of 28542989 is 98924582
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million five hundred forty-two thousand nine hundred eighty-nine
Scientific notation
2.8542989 × 10^7
Engineering notation
2.8542989 × 10^6
Prime Factorization
29 × 984241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28542989
Product of the distinct prime numbers
The prime factorization of 28542989 is 29 × 984241.
Since it has a total of 2 prime factors.
1 , 5 , 35 , 50 , 139 , 258 , 6001 , 967 , 34421 , 3117 , 537029 , 761246 , 2161522 , 416361 , 98850453 , 79950028 , 153186199 , 266090118 , 4911009107 , 6521183816
n×2
57085978
n×3
85628967
n×4
114171956
n×5
142714945
n÷2
14271494.5
n÷3
9514329.6666667
n÷3
7135747.25
n÷5
5708597.8
n2
814702221054121
n3
2.3254036533823E+22
n4
6.6373970899052E+29
n5
1.894511521258E+37
2 √n
5342.5638976057
3 √n
305.6092417746
4 √n
73.092844366639
5 √n
30.981318039848
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28542988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28542989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28542989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100111000100000001101
3
Ternary
1222201010121202
4
Quaternary
1230320200031
5
Quinary
24301333424
6
Senary
2455435245
8
Octal
154704015
10
Decimal
28542989
12
Duodecimal
9685b25
16
Hexadecimal
1b3880d
20
Vigesimal
8i7h99
36
Base36
gzrwt
md5
3f657a2795b8d0636a003bd76f5d5ee8
sha1
919e7fad9cc4910ad597dffc136815e95742cf7e
sha256
ec33d7b28a7f54fa15349b7d51bd0c3079c8e1ab2faaaa0c04bf370de7de7920
sha512
21a695a6dee786fab97fc04a433fab75056b9f9b371d696624cbb196bb7bd8b8063023d5811cc7b69ff296192a01213de09833659d5054800d0cd818e4e21255
ripemd-160
0e952d13e0c7eddeb93d294a5a4e3eb23b6d632e
Diameter
57085978
Circumference
179340889.10779
Area
2.5594625125269E+15
Volume
9.7406280454624E+22
Surface area
1.0237850050108E+16
Circumference
179340889.10779
Perimeter
114171956
Area
814702221054121
Diagonal
40365882.154466
Surface area
4888213326324726
Volume
2.3254036533823E+22
Space diagonal
49437907.14788
Perimeter
85628967
Area
3.5277640997624E+14
Altitude
24718953.57394
Surface area
3.5277640997624E+14
Volume
2.740514487171E+21
Height
13455294.051489