28779009 is an odd 8-digits composite number following 28779008
and preceding 28779010 . In scientific notation, it is written as 2.8779009 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 16219008 positive integers (up to 28779009) that are relatively prime to 28779009.
28779009 has 16 divisors, whose sum is 44456832
The reverse of 28779009 is 90097782
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million seven hundred seventy-nine thousand nine
Scientific notation
2.8779009 × 10^7
Engineering notation
2.8779009 × 10^6
Prime Factorization
3 × 7 × 73 × 18773
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28779009
Product of the distinct prime numbers
The prime factorization of 28779009 is 3 × 7 × 73 × 18773.
Since it has a total of 4 prime factors.
2 , 2 , 53 , 68 , 205 , 112 , 8594 , 7895 , 33261 , 76323 , 131344 , 28061 , 1540898 , 6128671 , 54405433 , 64482358 , 496893296 , 779445190 , 3925794547 , 123295081
n×2
57558018
n×3
86337027
n×4
115116036
n×5
143895045
n÷2
14389504.5
n÷3
9593003
n÷3
7194752.25
n÷5
5755801.8
n2
828231359022081
n3
2.3835677735379E+22
n4
6.8596718406756E+29
n5
1.9741455763985E+37
2 √n
5364.6070685559
3 √n
306.44928448104
4 √n
73.243477993306
5 √n
31.032385882265
1 , 3 , 7 , 21 , 73 , 219 , 511 , 1533 , 18773 , 56319 , 131411 , 394233 , 1370429 , 4111287 , 9593003 , 28779009
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28779008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28779009 can be divided by 16 positive divisors.
The sum of these divisors (counting 28779009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101101110010001000000001
3
Ternary
2000011010101020
4
Quaternary
1231302020001
5
Quinary
24331412014
6
Senary
2504500053
8
Octal
155621001
10
Decimal
28779009
12
Duodecimal
977a629
16
Hexadecimal
1b72201
20
Vigesimal
8jh7a9
36
Base36
h4u0x
md5
58694e6f0346f075f29d5a81198a5d26
sha1
9f82b40293025f7d1925d946031894770045cecb
sha256
b2fa70898db559c772e5af51e9593645d1a5b57639563464a87d76fcd47adb36
sha512
40a74ffe0b6311fd723ca2e035143e82e4eaa3a8cbb5acb167a12fb796a97b4654a5f1b1539041413f2bf2ea2b4a55f66d5e27dd7c58bffc3c26d2b5442717f3
ripemd-160
9b217f19e35788bde909605ff9e1d46d14c349ae
Diameter
57558018
Circumference
180823846.50399
Area
2.6019655529765E+15
Volume
9.9842653422399E+22
Surface area
1.0407862211906E+16
Circumference
180823846.50399
Perimeter
115116036
Area
828231359022081
Diagonal
40699664.839457
Surface area
4969388154132486
Volume
2.3835677735379E+22
Space diagonal
49846705.779482
Perimeter
86337027
Area
3.5863469856202E+14
Altitude
24923352.889741
Surface area
3.5863469856202E+14
Volume
2.8090615601439E+21
Height
13566554.946486