28165729 is an odd 8-digits composite number following 28165728
and preceding 28165730 . In scientific notation, it is written as 2.8165729 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 27478720 positive integers (up to 28165729) that are relatively prime to 28165729.
28165729 has 4 divisors, whose sum is 28852740
The reverse of 28165729 is 92756182
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million one hundred sixty-five thousand seven hundred twenty-nine
Scientific notation
2.8165729 × 10^7
Engineering notation
2.8165729 × 10^6
Prime Factorization
41 × 686969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28165729
Product of the distinct prime numbers
The prime factorization of 28165729 is 41 × 686969.
Since it has a total of 2 prime factors.
9 , 7 , 32 , 73 , 343 , 387 , 8631 , 4771 , 52813 , 930 , 608102 , 206717 , 2091232 , 9447213 , 71000496 , 22785545 , 914089194 , 125094498 , 4694152573 , 1376788955
n×2
56331458
n×3
84497187
n×4
112662916
n×5
140828645
n÷2
14082864.5
n÷3
9388576.3333333
n÷3
7041432.25
n÷5
5633145.8
n2
793308290101441
n3
2.2344106312451E+22
n4
6.2933804314367E+29
n5
1.7725764772575E+37
2 √n
5307.1394366457
3 √n
304.25682719929
4 √n
72.850116243186
5 √n
30.898983985435
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
-28165728
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 28165729 can be divided by 4 positive divisors.
The sum of these divisors (counting 28165729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011100011001100001
3
Ternary
1221222222010011
4
Quaternary
1223130121201
5
Quinary
24202300404
6
Senary
2443404521
8
Octal
153343141
10
Decimal
28165729
12
Duodecimal
9523741
16
Hexadecimal
1adc661
20
Vigesimal
8g0e69
36
Base36
grotd
md5
a8a992e5c3b0273ac5cbe80d0790f67a
sha1
aa0566ffadaf02c4e071a31d8b18b1fa069c3daf
sha256
96b973295cd4a5fa623eabd71279b061a6630d06e8bcb024aa90ecae4fcbb4ab
sha512
cb53d2f6d0065300886a422e878ac456dc211577a0a7ca73699c492a465ea58f842c56a41ff9878393235d392fa196b8509bf4e50b2fa5af9a90150d7ce3e0b1
ripemd-160
7df9e6c2f609e434fc63ce40a08bb209ad206b48
Diameter
56331458
Circumference
176970494.6188
Area
2.4922514962146E+15
Volume
9.3594773656299E+22
Surface area
9.9690059848583E+15
Circumference
176970494.6188
Perimeter
112662916
Area
793308290101441
Diagonal
39832355.945925
Surface area
4759849740608646
Volume
2.2344106312451E+22
Space diagonal
48784473.660216
Perimeter
84497187
Area
3.4351256613032E+14
Altitude
24392236.830108
Surface area
3.4351256613032E+14
Volume
2.6332781821812E+21
Height
13277451.981975