28691875 is an odd 8-digits composite number following 28691874
and preceding 28691876 . In scientific notation, it is written as 2.8691875 × 10^7.
The sum of its digits is 46. It has a total of 6 prime factors and 20 positive divisors.
There are 22148000 positive integers (up to 28691875) that are relatively prime to 28691875.
28691875 has 20 divisors, whose sum is 37113120
The reverse of 28691875 is 57819682
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-eight million six hundred ninety-one thousand eight hundred seventy-five
Scientific notation
2.8691875 × 10^7
Engineering notation
2.8691875 × 10^6
Prime Factorization
5 × 5 × 5 × 5 × 29 × 1583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
229535
Product of the distinct prime numbers
The prime factorization of 28691875 is 5 × 5 × 5 × 5 × 29 × 1583.
Since it has a total of 6 prime factors.
6 , 1 , 10 , 85 , 832 , 374 , 6504 , 7695 , 9188 , 73122 , 399399 , 798756 , 6559650 , 2561449 , 28139589 , 66232253 , 456205400 , 781864765 , 1984824489 , 1178488299
n×2
57383750
n×3
86075625
n×4
114767500
n×5
143459375
n÷2
14345937.5
n÷3
9563958.3333333
n÷3
7172968.75
n÷5
5738375
n2
823223691015625
n3
2.3619831239659E+22
n4
6.7769724544939E+29
n5
1.9444404654278E+37
2 √n
5356.4797208615
3 √n
306.13969371864
4 √n
73.187975247724
5 √n
31.013571776494
1 , 5 , 25 , 29 , 125 , 145 , 625 , 725 , 1583 , 3625 , 7915 , 18125 , 39575 , 45907 , 197875 , 229535 , 989375 , 1147675 , 5738375 , 28691875
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28691874
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28691875 can be divided by 20 positive divisors.
The sum of these divisors (counting 28691875) is 1, the average is 0.05.
Base
System
Value
2
Binary
1101101011100110110100011
3
Ternary
1222222200212001
4
Quaternary
1231130312203
5
Quinary
24321120000
6
Senary
2502544431
8
Octal
155346643
10
Decimal
28691875
12
Duodecimal
9738117
16
Hexadecimal
1b5cda3
20
Vigesimal
8j69df
36
Base36
h2ysj
md5
7a96d08dedfab472fb3a30cdddc858b3
sha1
fc373f7b5a5637e6008594bddd416d1cb5f2464b
sha256
a4d9d58d92c24e0564e9835143ce2b79c643df1eca8e0b38110230267ab539ce
sha512
1d87b93564d7d61a5e9237c869d0eccb7638186cbfb3c55fb75b9f56c0cf907c2c44a748f80eca972a8556c1285a4ce7ae0caa0c54b006819db762a0bd84dd61
ripemd-160
0004c6f431fc9157b2c93b35de16054d9b795273
Diameter
57383750
Circumference
180276367.43543
Area
2.5862334999558E+15
Volume
9.8938517735391E+22
Surface area
1.0344933999823E+16
Circumference
180276367.43543
Perimeter
114767500
Area
823223691015625
Diagonal
40576438.754914
Surface area
4939342146093750
Volume
2.3619831239659E+22
Space diagonal
49695785.264415
Perimeter
86075625
Area
3.5646631470836E+14
Altitude
24847892.632208
Surface area
3.5646631470836E+14
Volume
2.7836238066741E+21
Height
13525479.584971