28931623 is an odd 8-digits composite number following 28931622
and preceding 28931624 . In scientific notation, it is written as 2.8931623 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 18 positive divisors.
There are 23273784 positive integers (up to 28931623) that are relatively prime to 28931623.
28931623 has 18 divisors, whose sum is 35225736
The reverse of 28931623 is 32613982
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million nine hundred thirty-one thousand six hundred twenty-three
Scientific notation
2.8931623 × 10^7
Engineering notation
2.8931623 × 10^6
Prime Factorization
7 × 19 × 19 × 107 × 107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
14231
Product of the distinct prime numbers
The prime factorization of 28931623 is 7 × 19 × 19 × 107 × 107.
Since it has a total of 5 prime factors.
9 , 4 , 5 , 67 , 832 , 368 , 2619 , 3307 , 83589 , 3590 , 539396 , 479317 , 5998926 , 4598186 , 38785139 , 58733522 , 232447847 , 533818328 , 4304303145 , 379079644
n×2
57863246
n×3
86794869
n×4
115726492
n×5
144658115
n÷2
14465811.5
n÷3
9643874.3333333
n÷3
7232905.75
n÷5
5786324.6
n2
837038809414129
n3
2.4216891270338E+22
n4
7.0063396846542E+29
n5
2.0270477836635E+37
2 √n
5378.8124153943
3 √n
306.99002609535
4 √n
73.340387341453
5 √n
31.065229004157
1 , 7 , 19 , 107 , 133 , 361 , 749 , 2033 , 2527 , 11449 , 14231 , 38627 , 80143 , 217531 , 270389 , 1522717 , 4133089 , 28931623
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28931622
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931623 can be divided by 18 positive divisors.
The sum of these divisors (counting 28931623) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1101110010111011000100111
3
Ternary
2000102212201121
4
Quaternary
1232113120213
5
Quinary
24401302443
6
Senary
2512034411
8
Octal
156273047
10
Decimal
28931623
12
Duodecimal
9832a07
16
Hexadecimal
1b97627
20
Vigesimal
90g913
36
Base36
h83s7
md5
8bfd6cdfa6c1a0d097876ffa6fc8365e
sha1
6dd9c9af37c40693162b7315804af6b84f6d0f95
sha256
48dc8c18216c4594914ce8812645a360bf69921598e9645a95b0860b99a5d7a6
sha512
e251f6b38e61953e208927fbc4f42a2245cf374df6baeb21ec6fe850a09129bee81fdc5ff0886b969714dc6bf3332aa596b5ebeb729e5c76d464e3c3d8f27958
ripemd-160
a161086b0d2da1e288e14e1c01dc3468b56bc4d2
Diameter
57863246
Circumference
181782748.54646
Area
2.629634974425E+15
Volume
1.0143947694357E+23
Surface area
1.05185398977E+16
Circumference
181782748.54646
Perimeter
115726492
Area
837038809414129
Diagonal
40915493.628065
Surface area
5022232856484774
Volume
2.4216891270338E+22
Space diagonal
50111040.981428
Perimeter
86794869
Area
3.6244843645306E+14
Altitude
25055520.490714
Surface area
3.6244843645306E+14
Volume
2.8539880060856E+21
Height
13638497.876022