28561621 is an odd 8-digits composite number following 28561620
and preceding 28561622 . In scientific notation, it is written as 2.8561621 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 25932720 positive integers (up to 28561621) that are relatively prime to 28561621.
28561621 has 8 divisors, whose sum is 31197024
The reverse of 28561621 is 12616582
Previous prime number is 1453
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million five hundred sixty-one thousand six hundred twenty-one
Scientific notation
2.8561621 × 10^7
Engineering notation
2.8561621 × 10^6
Prime Factorization
11 × 1453 × 1787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28561621
Product of the distinct prime numbers
The prime factorization of 28561621 is 11 × 1453 × 1787.
Since it has a total of 3 prime factors.
6 , 2 , 74 , 91 , 540 , 775 , 4794 , 9368 , 73045 , 24433 , 35485 , 555236 , 6717042 , 7540318 , 69999234 , 46684761 , 251471841 , 918682369 , 8051230541 , 1240520588
n×2
57123242
n×3
85684863
n×4
114246484
n×5
142808105
n÷2
14280810.5
n÷3
9520540.3333333
n÷3
7140405.25
n÷5
5712324.2
n2
815766194147641
n3
2.3299604861857E+22
n4
6.6547448351413E+29
n5
1.9007029983301E+37
2 √n
5344.3073452039
3 √n
305.67572480084
4 √n
73.10476964743
5 √n
30.985361717641
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
-28561620
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 28561621 can be divided by 8 positive divisors.
The sum of these divisors (counting 28561621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100111101000011010101
3
Ternary
1222202002011211
4
Quaternary
1230331003111
5
Quinary
24302432441
6
Senary
2500101421
8
Octal
154750325
10
Decimal
28561621
12
Duodecimal
9694871
16
Hexadecimal
1b3d0d5
20
Vigesimal
8ia411
36
Base36
h06ad
md5
7eea4eff6a917220eff124072474c6e5
sha1
30ac491d3bbed86a1298fcadc31229bcb3d51b26
sha256
b1fb5bf0fe768872e4ad00b7cfcb0ea359ebab7e0b9d34b8409bdfe6bfc2924e
sha512
a579c823f40c6f6438c883760baa89bba1e73eb996d29a26cc7dcddf08229593b472608db18800bd1da2875b03948cd0756dab99a6c55c2dfd4e06dcc0110459
ripemd-160
dcb40a33a78db09c47981362274d5c492a5fb74d
Diameter
57123242
Circumference
179457957.41643
Area
2.5628050825811E+15
Volume
9.7597156620741E+22
Surface area
1.0251220330325E+16
Circumference
179457957.41643
Perimeter
114246484
Area
815766194147641
Diagonal
40392231.78156
Surface area
4894597164885846
Volume
2.3299604861857E+22
Space diagonal
49470178.718526
Perimeter
85684863
Area
3.532371238402E+14
Altitude
24735089.359263
Surface area
3.532371238402E+14
Volume
2.7458847661311E+21
Height
13464077.26052