28291257 is an odd 8-digits composite number following 28291256
and preceding 28291258 . In scientific notation, it is written as 2.8291257 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 18804408 positive integers (up to 28291257) that are relatively prime to 28291257.
28291257 has 12 divisors, whose sum is 40987440
The reverse of 28291257 is 75219282
Previous prime number is 347
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 fifty-seven
Scientific notation
2.8291257 × 10^7
Engineering notation
2.8291257 × 10^6
Prime Factorization
3 × 3 × 347 × 9059
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9430419
Product of the distinct prime numbers
The prime factorization of 28291257 is 3 × 3 × 347 × 9059.
Since it has a total of 4 prime factors.
3 , 9 , 75 , 91 , 563 , 810 , 5662 , 8659 , 82704 , 63042 , 692176 , 144342 , 2346941 , 5174710 , 33303107 , 22490714 , 807305948 , 696127989 , 6545554561 , 133071592
n×2
56582514
n×3
84873771
n×4
113165028
n×5
141456285
n÷2
14145628.5
n÷3
9430419
n÷3
7072814.25
n÷5
5658251.4
n2
800395222640049
n3
2.2644186945282E+22
n4
6.4063251242501E+29
n5
1.8124299051572E+37
2 √n
5318.9526224624
3 √n
304.70815763687
4 √n
72.931149877555
5 √n
30.926476911582
1 , 3 , 9 , 347 , 1041 , 3123 , 9059 , 27177 , 81531 , 3143473 , 9430419 , 28291257
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28291256
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28291257 can be divided by 12 positive divisors.
The sum of these divisors (counting 28291257) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101011111011000010111001
3
Ternary
1222020100022100
4
Quaternary
1223323002321
5
Quinary
24220310012
6
Senary
2450214013
8
Octal
153730271
10
Decimal
28291257
12
Duodecimal
9584309
16
Hexadecimal
1afb0b9
20
Vigesimal
8gg82h
36
Base36
gudo9
md5
462c8e4ee9f094769e8f99e88a49cf4f
sha1
4faf0a20fdb1b9be2de4db15e63ef00a32dd1264
sha256
9699368e9dcddadd74666489ffd33cfdb159e334d349e3347c430e63d3c1e08e
sha512
a23ef49c7091196816c0da9be95b1da8f0f2c294cb11a8495697222b3e4a83dd8c24504be9200c544928feeda9bdc577a1c99eb2c2654802904b81a3e13c4281
ripemd-160
e3e915c19fe0517f04791bf56843ab387f9626b7
Diameter
56582514
Circumference
177759210.30404
Area
2.5145157514143E+15
Volume
9.4851748471748E+22
Surface area
1.0058063005657E+16
Circumference
177759210.30404
Perimeter
113165028
Area
800395222640049
Diagonal
40009879.345983
Surface area
4802371335840294
Volume
2.2644186945282E+22
Space diagonal
49001894.533989
Perimeter
84873771
Area
3.4658129793699E+14
Altitude
24500947.266994
Surface area
3.4658129793699E+14
Volume
2.6686430239108E+21
Height
13336626.448661