28291275 is an odd 8-digits composite number following 28291274
and preceding 28291276 . In scientific notation, it is written as 2.8291275 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 15085440 positive integers (up to 28291275) that are relatively prime to 28291275.
28291275 has 16 divisors, whose sum is 36667776
The reverse of 28291275 is 57219282
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million two hundred ninety-one thousand two hundred seventy-five
Scientific notation
2.8291275 × 10^7
Engineering notation
2.8291275 × 10^6
Prime Factorization
81 × 15 × 5 × 4657
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28291275
Product of the distinct prime numbers
The prime factorization of 28291275 is 81 × 15 × 5 × 4657.
Since it has a total of 4 prime factors.
6 , 8 , 20 , 47 , 370 , 212 , 582 , 2241 , 29483 , 41499 , 538001 , 295601 , 3312341 , 2191028 , 88554480 , 17037396 , 347727876 , 757205505 , 472396930 , 7704938586
n×2
56582550
n×3
84873825
n×4
113165100
n×5
141456375
n÷2
14145637.5
n÷3
9430425
n÷3
7072818.75
n÷5
5658255
n2
800396241125625
n3
2.2644230166651E+22
n4
6.4063414280803E+29
n5
1.8124356708571E+37
2 √n
5318.9543145246
3 √n
304.70822225925
4 √n
72.931161477962
5 √n
30.926480846907
1 , 5 , 15 , 75 , 81 , 405 , 1215 , 4657 , 6075 , 23285 , 69855 , 349275 , 377217 , 1886085 , 5658255 , 28291275
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28291274
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28291275 can be divided by 16 positive divisors.
The sum of these divisors (counting 28291275) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011111011000011001011
3
Ternary
1222020100100000
4
Quaternary
1223323003023
5
Quinary
24220310100
6
Senary
2450214043
8
Octal
153730313
10
Decimal
28291275
12
Duodecimal
9584323
16
Hexadecimal
1afb0cb
20
Vigesimal
8gg83f
36
Base36
gudor
md5
37e764f4c789a0067c3ae83d65c3df03
sha1
3c152d3e806b86385f82da9ff23db5e668297f63
sha256
1f52d8d8918cc7dba7cbcffee344a9bd4f9be185fa907c53fc18310bded0b2ba
sha512
b71c06fc05f303370fec5a98212b4ba1ef98a07129f540066d53619c0e4a7fea7602c436841b570e013fce10d0db24d7d61482776a9d125fa84f0d0aa4635a21
ripemd-160
9206a5d5da9d8b0a2398a3f686ae3787b1014c8d
Diameter
56582550
Circumference
177759323.40138
Area
2.5145189510811E+15
Volume
9.4851929516998E+22
Surface area
1.0058075804325E+16
Circumference
177759323.40138
Perimeter
113165100
Area
800396241125625
Diagonal
40009904.801827
Surface area
4802377446753750
Volume
2.2644230166651E+22
Space diagonal
49001925.710903
Perimeter
84873825
Area
3.4658173895418E+14
Altitude
24500962.855452
Surface area
3.4658173895418E+14
Volume
2.668648117598E+21
Height
13336634.933942