28777789 is an odd 8-digits composite number following 28777788
and preceding 28777790 . In scientific notation, it is written as 2.8777789 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 28762524 positive integers (up to 28777789) that are relatively prime to 28777789.
28777789 has 4 divisors, whose sum is 28793056
The reverse of 28777789 is 98777782
Previous prime number is 2203
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
twenty-eight million seven hundred seventy-seven thousand seven hundred eighty-nine
Scientific notation
2.8777789 × 10^7
Engineering notation
2.8777789 × 10^6
Prime Factorization
2203 × 13063
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28777789
Product of the distinct prime numbers
The prime factorization of 28777789 is 2203 × 13063.
Since it has a total of 2 prime factors.
1 , 2 , 96 , 54 , 664 , 918 , 2892 , 3486 , 22171 , 21014 , 389167 , 696338 , 231983 , 7594760 , 3080460 , 46700750 , 140574646 , 854235987 , 657229993 , 8969107355
n×2
57555578
n×3
86333367
n×4
115111156
n×5
143888945
n÷2
14388894.5
n÷3
9592596.3333333
n÷3
7194447.25
n÷5
5755557.8
n2
828161139728521
n3
2.3832646537107E+22
n4
6.8585087335644E+29
n5
1.9737271718917E+37
2 √n
5364.493359116
3 √n
306.44495408627
4 √n
73.242701746427
5 √n
31.032122772769
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
-28777788
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 28777789 can be divided by 4 positive divisors.
The sum of these divisors (counting 28777789) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101110001110100111101
3
Ternary
2000011001201001
4
Quaternary
1231301310331
5
Quinary
24331342124
6
Senary
2504450301
8
Octal
155616475
10
Decimal
28777789
12
Duodecimal
9779991
16
Hexadecimal
1b71d3d
20
Vigesimal
8jh499
36
Base36
h4t31
md5
6545a3876f59989ccde94fa4b38ecca8
sha1
c798c9069874783a1e69419cc449497f83b48525
sha256
bfc747a1239c8660ae36be6564834f101f55170722b2fbca83f6d16a4d7dda8d
sha512
78a9d4656dc23ddbd899812fd066d16bd0aa24063635f8aec5e2e8c78868eae579e6647c287413f28140304b1cd0b9d3b5e27b003f40944edc9242676526df60
ripemd-160
dbc6aa3317dfe9a2292a596b9f7b1d8418ee001d
Diameter
57555578
Circumference
180816181.01791
Area
2.6017449525597E+15
Volume
9.982995636877E+22
Surface area
1.0406979810239E+16
Circumference
180816181.01791
Perimeter
115111156
Area
828161139728521
Diagonal
40697939.498911
Surface area
4968966838371126
Volume
2.3832646537107E+22
Space diagonal
49844592.677497
Perimeter
86333367
Area
3.5860429271599E+14
Altitude
24922296.338748
Surface area
3.5860429271599E+14
Volume
2.8087043300017E+21
Height
13565979.83297