28919 is an odd 5-digits composite number following 28918
and preceding 28920 . In scientific notation, it is written as 2.8919 × 10^4.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 26180 positive integers (up to 28919) that are relatively prime to 28919.
28919 has 4 divisors, whose sum is 29280
The reverse of 28919 is 91982
Previous prime number is 121
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 29
Digital Root 2
Name
twenty-eight thousand nine hundred nineteen
Scientific notation
2.8919 × 10^4
Engineering notation
2.8919 × 10^3
Prime Factorization
121 × 239
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28919
Product of the distinct prime numbers
The prime factorization of 28919 is 121 × 239.
Since it has a total of 2 prime factors.
6 , 3 , 28 , 72 , 161 , 309 , 8385 , 3659 , 87584 , 84616 , 523701 , 227334 , 117382 , 5047657 , 34755425 , 29681867 , 24054250 , 486682270 , 8721198948 , 7212538235
n×2
57838
n×3
86757
n×4
115676
n×5
144595
n÷2
14459.5
n÷3
9639.6666666667
n÷3
7229.75
n÷5
5783.8
n2
836308561
n3
24185207275559
n4
699412009201890721
n5
2.0226295894109E+22
2 √n
170.05587317114
3 √n
30.694537254773
4 √n
13.040547272685
5 √n
7.8025516866063
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
-28918
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 28919 can be divided by 4 positive divisors.
The sum of these divisors (counting 28919) is 1, the average is 0.25.
Base
System
Value
2
Binary
111000011110111
3
Ternary
1110200002
4
Quaternary
13003313
5
Quinary
1411134
6
Senary
341515
8
Octal
70367
10
Decimal
28919
12
Duodecimal
1489b
16
Hexadecimal
70f7
20
Vigesimal
3c5j
36
Base36
mbb
md5
aabcec3c1485362f5f588135883d37b6
sha1
eb702bdee23307dbdb662f115b83834dc7e9315e
sha256
fb6047fead22cd55b476e2eb5790ca343bfe0888b1bb7772893216f3e34d840d
sha512
856e3c2627158fefeee35e56204ee858eac7de4e1ee0e64471087d98112fd8445bc1e0ed84b3bc5b8cc428b79f6aec68a501cd0287d7b237ebf7ad6a54d82d6c
ripemd-160
94553de3e7086b9e3f5538f17f177f76f92ba4a2
Diameter
57838
Circumference
181703.43589833
Area
2627340831.3719
Volume
1.0130675933659E+14
Surface area
10509363325.487
Circumference
181703.43589833
Perimeter
115676
Area
836308561
Diagonal
40897.642010268
Surface area
5017851366
Volume
24185207275559
Space diagonal
50089.177304084
Perimeter
86757
Area
362132229.6142
Altitude
25044.588652042
Surface area
362132229.6142
Volume
2850254011491.7
Height
13632.547336756