28161801 is an odd 8-digits composite number following 28161800
and preceding 28161802 . In scientific notation, it is written as 2.8161801 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 18774528 positive integers (up to 28161801) that are relatively prime to 28161801.
28161801 has 4 divisors, whose sum is 31290900
The reverse of 28161801 is 10816182
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million one hundred sixty-one thousand eight hundred one
Scientific notation
2.8161801 × 10^7
Engineering notation
2.8161801 × 10^6
Prime Factorization
9 × 3129089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28161801
Product of the distinct prime numbers
The prime factorization of 28161801 is 9 × 3129089.
Since it has a total of 2 prime factors.
2 , 5 , 32 , 78 , 10 , 436 , 2590 , 7390 , 91634 , 38310 , 30241 , 499444 , 9261032 , 3726469 , 10682083 , 17793908 , 916161362 , 293101330 , 1585728507 , 4728452032
n×2
56323602
n×3
84485403
n×4
112647204
n×5
140809005
n÷2
14080900.5
n÷3
9387267
n÷3
7040450.25
n÷5
5632360.2
n2
793087035563601
n3
2.2334759271222E+22
n4
6.2898704597906E+29
n5
1.771340802044E+37
2 √n
5306.7693562091
3 √n
304.24268262926
4 √n
72.847576186234
5 √n
30.898122101262
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
-28161800
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 28161801 can be divided by 4 positive divisors.
The sum of these divisors (counting 28161801) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011011100001001
3
Ternary
1221222202201200
4
Quaternary
1223123130021
5
Quinary
24202134201
6
Senary
2443334413
8
Octal
153333411
10
Decimal
28161801
12
Duodecimal
9521409
16
Hexadecimal
1adb709
20
Vigesimal
8g04a1
36
Base36
grls9
md5
1f406ba860d4806b2fc69f8ef8e99c01
sha1
8f2bbfebd3ac7160a4ec58c29af8cfd716ec2dbd
sha256
0af5ef11be0c41b7413681c4a0868921cfd746515823b9cda2f3ac0fa859fe3a
sha512
14a5274280b5d4b74e7a619becfacbb7cab1228e9b5dad410aa10275df2a995f919b178f337357dee3de38402dc5163a81efab0b4a9c60169117deab4ff859b2
ripemd-160
85e1f32997ec2936c97efb0593e4f3cfb08869bb
Diameter
56323602
Circumference
176945814.26692
Area
2.4915564045839E+15
Volume
9.3555620861557E+22
Surface area
9.9662256183357E+15
Circumference
176945814.26692
Perimeter
112647204
Area
793087035563601
Diagonal
39826800.915052
Surface area
4758522213381606
Volume
2.2334759271222E+22
Space diagonal
48777670.164644
Perimeter
84485403
Area
3.4341676010509E+14
Altitude
24388835.082322
Surface area
3.4341676010509E+14
Volume
2.6321766228084E+21
Height
13275600.305017