28491275 is an odd 8-digits composite number following 28491274
and preceding 28491276 . In scientific notation, it is written as 2.8491275 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 22738080 positive integers (up to 28491275) that are relatively prime to 28491275.
28491275 has 8 divisors, whose sum is 29702400
The reverse of 28491275 is 57219482
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million four hundred ninety-one thousand two hundred seventy-five
Scientific notation
2.8491275 × 10^7
Engineering notation
2.8491275 × 10^6
Prime Factorization
25 × 509 × 2239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28491275
Product of the distinct prime numbers
The prime factorization of 28491275 is 25 × 509 × 2239.
Since it has a total of 3 prime factors.
1 , 2 , 5 , 87 , 460 , 163 , 1541 , 8770 , 77547 , 97304 , 485224 , 120185 , 310229 , 7772975 , 26474742 , 5676553 , 414334111 , 261944874 , 7451262719 , 9556441106
n×2
56982550
n×3
85473825
n×4
113965100
n×5
142456375
n÷2
14245637.5
n÷3
9497091.6666667
n÷3
7122818.75
n÷5
5698255
n2
811752751125625
n3
2.3127870864327E+22
n4
6.5894252896002E+29
n5
1.8774112801795E+37
2 √n
5337.7218923432
3 √n
305.42456325754
4 √n
73.059714565164
5 √n
30.970083545354
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
-28491274
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 28491275 can be divided by 8 positive divisors.
The sum of these divisors (counting 28491275) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100101011111000001011
3
Ternary
1222121111200102
4
Quaternary
1230223320023
5
Quinary
24243210100
6
Senary
2454400015
8
Octal
154537013
10
Decimal
28491275
12
Duodecimal
966000b
16
Hexadecimal
1b2be0b
20
Vigesimal
8i183f
36
Base36
gyo0b
md5
fde3310a6ca5cbc3997286e619fc2610
sha1
f8fc7eb9e696f0b53c0b74159eaee95a86343d4f
sha256
2a6252b28e39d0b77cadfb0c58808e622f6d17cb1512b5cb950284d0a04e9f8e
sha512
afe1216ac8a21f082f4c8b59814592f9c1f84fe2e6c038d44c8a342ebd80ab0dafd27e003f7ea991c8c92416c9453830e40e315f2116b92b35e953b5f3d4fd4f
ripemd-160
ce79bf5f613d8d7c1af86179a7090f8ea751be2b
Diameter
56982550
Circumference
179015960.46281
Area
2.5501964794676E+15
Volume
9.6877798934056E+22
Surface area
1.020078591787E+16
Circumference
179015960.46281
Perimeter
113965100
Area
811752751125625
Diagonal
40292747.514302
Surface area
4870516506753750
Volume
2.3127870864327E+22
Space diagonal
49348335.872417
Perimeter
85473825
Area
3.5149925203335E+14
Altitude
24674167.936208
Surface area
3.5149925203335E+14
Volume
2.7256457204287E+21
Height
13430915.838101