28804921 is an odd 8-digits composite number following 28804920
and preceding 28804922 . In scientific notation, it is written as 2.8804921 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 27401520 positive integers (up to 28804921) that are relatively prime to 28804921.
28804921 has 8 divisors, whose sum is 30240000
The reverse of 28804921 is 12940882
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million eight hundred four thousand nine hundred twenty-one
Scientific notation
2.8804921 × 10^7
Engineering notation
2.8804921 × 10^6
Prime Factorization
31 × 59 × 15749
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28804921
Product of the distinct prime numbers
The prime factorization of 28804921 is 31 × 59 × 15749.
Since it has a total of 3 prime factors.
2 , 4 , 51 , 9 , 714 , 950 , 2220 , 2090 , 21833 , 31104 , 70279 , 422634 , 941479 , 9179001 , 73340374 , 38836095 , 28904268 , 940831331 , 4880792768 , 4635797721
n×2
57609842
n×3
86414763
n×4
115219684
n×5
144024605
n÷2
14402460.5
n÷3
9601640.3333333
n÷3
7201230.25
n÷5
5760984.2
n2
829723473816241
n3
2.3900119115122E+22
n4
6.8844104300169E+29
n5
1.9830489856821E+37
2 √n
5367.0216135209
3 √n
306.54123033684
4 √n
73.259959142228
5 √n
31.037972049166
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28804920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28804921 can be divided by 8 positive divisors.
The sum of these divisors (counting 28804921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101111000011100111001
3
Ternary
2000012102220221
4
Quaternary
1231320130321
5
Quinary
24333224141
6
Senary
2505220041
8
Octal
155703471
10
Decimal
28804921
12
Duodecimal
9791621
16
Hexadecimal
1b78739
20
Vigesimal
900c61
36
Base36
h5e0p
md5
0817540956b8048924c688735c736120
sha1
89a30b039551f5f77af1a3e18a88a7af601d2a00
sha256
ebeeb3ac6a7de92b560a15570803b1f32803be024901597470778787a4eadbaf
sha512
2a7e58b54bed79551feb7a3c9c2b5eba3ed19339fbac480ee804777cd78a7651b370bb770c81647a38baf26b980991882b6c35a56a97a494d75191010203661e
ripemd-160
16bdc55ae1608786467e90d4b54b96808410c951
Diameter
57609842
Circumference
180986656.40167
Area
2.6066531698521E+15
Volume
1.0011258484265E+23
Surface area
1.0426612679408E+16
Circumference
180986656.40167
Perimeter
115219684
Area
829723473816241
Diagonal
40736309.941286
Surface area
4978340842897446
Volume
2.3900119115122E+22
Space diagonal
49891586.680008
Perimeter
86414763
Area
3.5928080322057E+14
Altitude
24945793.340004
Surface area
3.5928080322057E+14
Volume
2.8166560495782E+21
Height
13578769.980429