28389621 is an odd 8-digits composite number following 28389620
and preceding 28389622 . In scientific notation, it is written as 2.8389621 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 17470512 positive integers (up to 28389621) that are relatively prime to 28389621.
28389621 has 8 divisors, whose sum is 40764640
The reverse of 28389621 is 12698382
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million three hundred eighty-nine thousand six hundred twenty-one
Scientific notation
2.8389621 × 10^7
Engineering notation
2.8389621 × 10^6
Prime Factorization
3 × 13 × 727939
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28389621
Product of the distinct prime numbers
The prime factorization of 28389621 is 3 × 13 × 727939.
Since it has a total of 3 prime factors.
3 , 6 , 35 , 18 , 150 , 997 , 5892 , 4759 , 25069 , 29598 , 547162 , 258093 , 1218198 , 5947008 , 90586655 , 35282561 , 356089312 , 874863954 , 9793553238 , 3077829360
n×2
56779242
n×3
85168863
n×4
113558484
n×5
141948105
n÷2
14194810.5
n÷3
9463207
n÷3
7097405.25
n÷5
5677924.2
n2
805970580523641
n3
2.2881199318216E+22
n4
6.4958857666961E+29
n5
1.844157349758E+37
2 √n
5328.1911564808
3 √n
305.06088903497
4 √n
72.994459765662
5 √n
30.947952310116
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
-28389620
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 28389621 can be divided by 8 positive divisors.
The sum of these divisors (counting 28389621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010011000011110101
3
Ternary
1222102100020110
4
Quaternary
1230103003311
5
Quinary
24231431441
6
Senary
2452253233
8
Octal
154230365
10
Decimal
28389621
12
Duodecimal
9611219
16
Hexadecimal
1b130f5
20
Vigesimal
8h8e11
36
Base36
gwhkl
md5
ed817c93954c4a7dba3c5eff09a3b6a8
sha1
571f6178429da49e08028659e5899efd4501eb2f
sha256
f902a1927df35c92b18c0efa36db18e4d82625b161bfd176b70463da96248767
sha512
32d9798df6e1b044b7cd842af1d2a10fe2b6f55ab48ec82e3aa1b135c8f0c6e50393cecfd5c44f45933db469e078f3747cfa2326801834cdf6243e267bcee27a
ripemd-160
569816c450b31466db03142f9c284cbd574e58d9
Diameter
56779242
Circumference
178377249.5436
Area
2.5320312547826E+15
Volume
9.5844543577909E+22
Surface area
1.012812501913E+16
Circumference
178377249.5436
Perimeter
113558484
Area
805970580523641
Diagonal
40148987.048832
Surface area
4835823483141846
Volume
2.2881199318216E+22
Space diagonal
49172265.979624
Perimeter
85168863
Area
3.4899549871818E+14
Altitude
24586132.989812
Surface area
3.4899549871818E+14
Volume
2.6965751999319E+21
Height
13382995.682944