28805621 is an odd 8-digits composite number following 28805620
and preceding 28805622 . In scientific notation, it is written as 2.8805621 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 26353152 positive integers (up to 28805621) that are relatively prime to 28805621.
28805621 has 8 divisors, whose sum is 31297560
The reverse of 28805621 is 12650882
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million eight hundred five thousand six hundred twenty-one
Scientific notation
2.8805621 × 10^7
Engineering notation
2.8805621 × 10^6
Prime Factorization
13 × 113 × 19609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28805621
Product of the distinct prime numbers
The prime factorization of 28805621 is 13 × 113 × 19609.
Since it has a total of 3 prime factors.
10 , 2 , 65 , 1 , 741 , 523 , 6313 , 5039 , 16679 , 26609 , 571658 , 268856 , 5938154 , 513930 , 97410634 , 85347979 , 239952034 , 188613820 , 4661049716 , 8209027397
n×2
57611242
n×3
86416863
n×4
115222484
n×5
144028105
n÷2
14402810.5
n÷3
9601873.6666667
n÷3
7201405.25
n÷5
5761124.2
n2
829763801195641
n3
2.3901861576761E+22
n4
6.8850796577464E+29
n5
1.9832899517585E+37
2 √n
5367.0868262028
3 √n
306.54371344408
4 √n
73.260404218123
5 √n
31.038122900954
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
-28805620
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 28805621 can be divided by 8 positive divisors.
The sum of these divisors (counting 28805621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101111000100111110101
3
Ternary
2000012110212212
4
Quaternary
1231320213311
5
Quinary
24333234441
6
Senary
2505223205
8
Octal
155704765
10
Decimal
28805621
12
Duodecimal
9791b05
16
Hexadecimal
1b789f5
20
Vigesimal
900e11
36
Base36
h5ek5
md5
e6c7683833074535987ed3639935ae3a
sha1
c02ada7866b0547ef7e5cea3020f0b8ea40cfd6d
sha256
972324821c06581c8c3d4688251c147e9b7f021ced0243f95ecc8bb44acbe7e5
sha512
5e03ca05cd90c4008c7618090affdb658257a4951cef8523fb6071938a43c2bb252344518ecbe2ea2e27f503d04b1d14e307f25ba7cf6928dccf420f19bc9571
ripemd-160
59dbbe434aad782abf7601f19b7300da288bf36a
Diameter
57611242
Circumference
180991054.63138
Area
2.606779862051E+15
Volume
1.001198836489E+23
Surface area
1.0427119448204E+16
Circumference
180991054.63138
Perimeter
115222484
Area
829763801195641
Diagonal
40737299.890779
Surface area
4978582807173846
Volume
2.3901861576761E+22
Space diagonal
49892799.115573
Perimeter
86416863
Area
3.5929826548808E+14
Altitude
24946399.557787
Surface area
3.5929826548808E+14
Volume
2.8168614006516E+21
Height
13579099.963593