28821489 is an odd 8-digits composite number following 28821488
and preceding 28821490 . In scientific notation, it is written as 2.8821489 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 19214324 positive integers (up to 28821489) that are relatively prime to 28821489.
28821489 has 4 divisors, whose sum is 38428656
The reverse of 28821489 is 98412882
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million eight hundred twenty-one thousand four hundred eighty-nine
Scientific notation
2.8821489 × 10^7
Engineering notation
2.8821489 × 10^6
Prime Factorization
3 × 9607163
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28821489
Product of the distinct prime numbers
The prime factorization of 28821489 is 3 × 9607163.
Since it has a total of 2 prime factors.
4 , 9 , 63 , 68 , 748 , 564 , 8458 , 8795 , 28789 , 67909 , 299084 , 94292 , 5821206 , 9685885 , 86693870 , 58562821 , 168337366 , 579282523 , 2710068640 , 2478356132
n×2
57642978
n×3
86464467
n×4
115285956
n×5
144107445
n÷2
14410744.5
n÷3
9607163
n÷3
7205372.25
n÷5
5764297.8
n2
830678228177121
n3
2.3941383415946E+22
n4
6.9002631876748E+29
n5
1.9887585956067E+37
2 √n
5368.5648920359
3 √n
306.59999114927
4 √n
73.270491277429
5 √n
31.041541709018
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
-28821488
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 28821489 can be divided by 4 positive divisors.
The sum of these divisors (counting 28821489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101111100011111110001
3
Ternary
2000020021122120
4
Quaternary
1231330133301
5
Quinary
24334241424
6
Senary
2505424453
8
Octal
155743761
10
Decimal
28821489
12
Duodecimal
979b129
16
Hexadecimal
1b7c7f1
20
Vigesimal
902de9
36
Base36
h5qsx
md5
18272097bc1ddb43ded4e9c0522dc38f
sha1
cb76a19c5a167771b935443bdedd7b061b9754fe
sha256
48192fe5171a1a76d115fb3187ea33c1f8df5325bbb3bb98366b93af2c92d197
sha512
099277b6b8e43d299e0970acf15e551b54ba534dcdddf2c8088d4f01b3a31c43b22c9c9a4a6dc095cf3be057c18e126cc10dcb83aef57978404b49308fb3ffa6
ripemd-160
1ae11b2e4f70b63f4e2d91fadfca2e173bc3bb2c
Diameter
57642978
Circumference
181090756.21584
Area
2.6096526191382E+15
Volume
1.0028543234175E+23
Surface area
1.0438610476553E+16
Circumference
181090756.21584
Perimeter
115285956
Area
830678228177121
Diagonal
40759740.631587
Surface area
4984069369062726
Volume
2.3941383415946E+22
Space diagonal
49920283.297788
Perimeter
86464467
Area
3.5969422398602E+14
Altitude
24960141.648894
Surface area
3.5969422398602E+14
Volume
2.8215190940671E+21
Height
13586580.210529