28308891 is an odd 8-digits composite number following 28308890
and preceding 28308892 . In scientific notation, it is written as 2.8308891 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 17375904 positive integers (up to 28308891) that are relatively prime to 28308891.
28308891 has 8 divisors, whose sum is 29109760
The reverse of 28308891 is 19880382
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million three hundred eight thousand eight hundred ninety-one
Scientific notation
2.8308891 × 10^7
Engineering notation
2.8308891 × 10^6
Prime Factorization
39 × 547 × 1327
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28308891
Product of the distinct prime numbers
The prime factorization of 28308891 is 39 × 547 × 1327.
Since it has a total of 3 prime factors.
10 , 10 , 9 , 16 , 775 , 312 , 9286 , 7850 , 98588 , 50819 , 445008 , 318614 , 405630 , 2726805 , 12912821 , 35004790 , 866747924 , 33523602 , 6172250415 , 6900778025
n×2
56617782
n×3
84926673
n×4
113235564
n×5
141544455
n÷2
14154445.5
n÷3
9436297
n÷3
7077222.75
n÷5
5661778.2
n2
801393309649881
n3
2.2686555851008E+22
n4
6.4223123675159E+29
n5
1.8180854077996E+37
2 √n
5320.6100214167
3 √n
304.77145289987
4 √n
72.942511756977
5 √n
30.930331258356
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
-28308890
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 28308891 can be divided by 8 positive divisors.
The sum of these divisors (counting 28308891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011111111010110011011
3
Ternary
1222021020111110
4
Quaternary
1223333112123
5
Quinary
24221341031
6
Senary
2450431403
8
Octal
153772633
10
Decimal
28308891
12
Duodecimal
9592563
16
Hexadecimal
1aff59b
20
Vigesimal
8gic4b
36
Base36
gura3
md5
680332d3a1e6dfcf1f029b614b83644d
sha1
248c02b111223c09d257cafa51b2515356b729ea
sha256
6271df8242f69bd27199fd3c0acaa669a3b81f64a3e9a78483b2b6fda17c21f4
sha512
4d4d77e35bedbac5f5056725c6acce0f4d51d2ee3bedc010d93f722a326ba3addad7cb0998bfeaf874fe1e3a499d854a35284f3667a010da79c2cc304bb55edb
ripemd-160
1b48ef4acf1a8f546b50fc5f1da527fb28444c1b
Diameter
56617782
Circumference
177870007.99375
Area
2.5176513342321E+15
Volume
9.5029222929041E+22
Surface area
1.0070605336928E+16
Circumference
177870007.99375
Perimeter
113235564
Area
801393309649881
Diagonal
40034817.587942
Surface area
4808359857899286
Volume
2.2686555851008E+22
Space diagonal
49032437.517929
Perimeter
84926673
Area
3.4701348228984E+14
Altitude
24516218.758965
Surface area
3.4701348228984E+14
Volume
2.6736362473358E+21
Height
13344939.195981