28932721 is an odd 8-digits composite number following 28932720
and preceding 28932722 . In scientific notation, it is written as 2.8932721 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 28584052 positive integers (up to 28932721) that are relatively prime to 28932721.
28932721 has 4 divisors, whose sum is 29281392
The reverse of 28932721 is 12723982
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million nine hundred thirty-two thousand seven hundred twenty-one
Scientific notation
2.8932721 × 10^7
Engineering notation
2.8932721 × 10^6
Prime Factorization
83 × 348587
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28932721
Product of the distinct prime numbers
The prime factorization of 28932721 is 83 × 348587.
Since it has a total of 2 prime factors.
5 , 7 , 91 , 40 , 14 , 463 , 1513 , 9311 , 36383 , 96688 , 106404 , 805196 , 5133584 , 8756772 , 26208005 , 15090647 , 692859069 , 517644071 , 236595485 , 9058478281
n×2
57865442
n×3
86798163
n×4
115730884
n×5
144663605
n÷2
14466360.5
n÷3
9644240.3333333
n÷3
7233180.25
n÷5
5786544.2
n2
837102344463841
n3
2.4219648580818E+22
n4
7.0074033510686E+29
n5
2.0274324609093E+37
2 √n
5378.914481566
3 √n
306.99390962888
4 √n
73.341083176934
5 √n
31.065464795309
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28932720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28932721 can be divided by 4 positive divisors.
The sum of these divisors (counting 28932721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111101001110001
3
Ternary
2000102221020021
4
Quaternary
1232113221301
5
Quinary
24401321341
6
Senary
2512043441
8
Octal
156275161
10
Decimal
28932721
12
Duodecimal
9833581
16
Hexadecimal
1b97a71
20
Vigesimal
90gbg1
36
Base36
h84mp
md5
ee817c5acc7108a569f1d1479036b68f
sha1
cd764dd25b98a85e250f4895ad75f60377ca408a
sha256
b9833679f6c893dc4b6302f1f45172dbe5d29110a8cf38f5693e354ae39e5006
sha512
18bdab0a619c573c35292c7dc25b9d5b4cac3f57de9cfed749508403a76ebd7b28f4c076018f424eaa7a0936c716f12c6a147b704364e3e0c902f45c2bf04ec4
ripemd-160
1aed6e87286efa12d32d3403efe45a16d76768f1
Diameter
57865442
Circumference
181789647.48393
Area
2.6298345756704E+15
Volume
1.014510267387E+23
Surface area
1.0519338302682E+16
Circumference
181789647.48393
Perimeter
115730884
Area
837102344463841
Diagonal
40917046.434557
Surface area
5022614066783046
Volume
2.4219648580818E+22
Space diagonal
50112942.773215
Perimeter
86798163
Area
3.624759479366E+14
Altitude
25056471.386608
Surface area
3.624759479366E+14
Volume
2.8543129582419E+21
Height
13639015.478186