28668731 is an odd 8-digits composite number following 28668730
and preceding 28668732 . In scientific notation, it is written as 2.8668731 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 22197024 positive integers (up to 28668731) that are relatively prime to 28668731.
28668731 has 8 divisors, whose sum is 29604864
The reverse of 28668731 is 13786682
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million six hundred sixty-eight thousand seven hundred thirty-one
Scientific notation
2.8668731 × 10^7
Engineering notation
2.8668731 × 10^6
Prime Factorization
91 × 47 × 6703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28668731
Product of the distinct prime numbers
The prime factorization of 28668731 is 91 × 47 × 6703.
Since it has a total of 3 prime factors.
9 , 8 , 2 , 69 , 903 , 252 , 8517 , 8502 , 19733 , 63148 , 259801 , 434962 , 7964504 , 8771979 , 26107271 , 93095052 , 233910895 , 465802025 , 8689024130 , 6519917488
n×2
57337462
n×3
86006193
n×4
114674924
n×5
143343655
n÷2
14334365.5
n÷3
9556243.6666667
n÷3
7167182.75
n÷5
5733746.2
n2
821896137150361
n3
2.3562719265903E+22
n4
6.7551326026269E+29
n5
1.9366107945404E+37
2 √n
5354.3189109354
3 √n
306.05735678505
4 √n
73.173211703023
5 √n
31.008566806881
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
-28668730
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 28668731 can be divided by 8 positive divisors.
The sum of these divisors (counting 28668731) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101010111001100111011
3
Ternary
1222221112002212
4
Quaternary
1231113030323
5
Quinary
24314344411
6
Senary
2502245335
8
Octal
155271473
10
Decimal
28668731
12
Duodecimal
972684b
16
Hexadecimal
1b5733b
20
Vigesimal
8j3bgb
36
Base36
h2gxn
md5
0994385d801b6c8d8961a3bcec99668e
sha1
80564fa4a014aabdaf3bc068b81a18e091f7f915
sha256
0b7dd26888cf4b4ff9f54cff8b6e6f4b3746a82b19b3ba9dd8ccbac5e3b7a317
sha512
78047c6a10396fad564a4cbd541905c1837c49355e9d80e24ba29b9d99576961399f8994facd0fa7f42f763e5e58071af464f9e9d390814e40d8c54a925a28b2
ripemd-160
14189393b1e91b152e0fefab517c33026ce2fa1f
Diameter
57337462
Circumference
180130949.39468
Area
2.5820628664854E+15
Volume
9.8699287659145E+22
Surface area
1.0328251465942E+16
Circumference
180130949.39468
Perimeter
114674924
Area
821896137150361
Diagonal
40543708.196226
Surface area
4931376822902166
Volume
2.3562719265903E+22
Space diagonal
49655698.680525
Perimeter
86006193
Area
3.5589146702226E+14
Altitude
24827849.340262
Surface area
3.5589146702226E+14
Volume
2.7768930960191E+21
Height
13514569.398742