28403921 is an odd 8-digits composite number following 28403920
and preceding 28403922 . In scientific notation, it is written as 2.8403921 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 22391424 positive integers (up to 28403921) that are relatively prime to 28403921.
28403921 has 4 divisors, whose sum is 28446192
The reverse of 28403921 is 12930482
Previous prime number is 41587
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million four hundred three thousand nine hundred twenty-one
Scientific notation
2.8403921 × 10^7
Engineering notation
2.8403921 × 10^6
Prime Factorization
41587 × 683
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28403921
Product of the distinct prime numbers
The prime factorization of 28403921 is 41587 × 683.
Since it has a total of 2 prime factors.
9 , 10 , 33 , 54 , 220 , 905 , 8469 , 3395 , 23976 , 67436 , 899456 , 985281 , 1449651 , 2224180 , 24584085 , 4957052 , 981980612 , 157085569 , 6326641436 , 5132904925
n×2
56807842
n×3
85211763
n×4
113615684
n×5
142019605
n÷2
14201960.5
n÷3
9467973.6666667
n÷3
7100980.25
n÷5
5680784.2
n2
806782728174241
n3
2.2915792875226E+22
n4
6.5089837048027E+29
n5
1.848806589415E+37
2 √n
5329.5329063624
3 √n
305.11210069044
4 √n
73.003649952331
5 √n
30.951069411101
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
-28403920
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 28403921 can be divided by 4 positive divisors.
The sum of these divisors (counting 28403921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010110100011010001
3
Ternary
1222110001212002
4
Quaternary
1230112203101
5
Quinary
24232411141
6
Senary
2452443345
8
Octal
154264321
10
Decimal
28403921
12
Duodecimal
9619555
16
Hexadecimal
1b168d1
20
Vigesimal
8ha9g1
36
Base36
gwslt
md5
4f498b5faf32f65b6ab404452dae6e90
sha1
ceb202b43cff30715dcc15f0fa9916669104a3ac
sha256
2c23af474d608b2b82528ca358c92307f3579a7b8f4cc46dbc902074e623e3d7
sha512
1eca447e50d9ed3f3567290b7121444f519126b1401f80ae3e35830d426363c677d6b75a3d824a755766753997502656815fadd0c5c5c24b3727e7024a6f8e84
ripemd-160
131cf69323dc14f983532a3e3e7a2c822d9ca25f
Diameter
56807842
Circumference
178467099.09349
Area
2.5345826918753E+15
Volume
9.5989448730659E+22
Surface area
1.0138330767501E+16
Circumference
178467099.09349
Perimeter
113615684
Area
806782728174241
Diagonal
40169210.302774
Surface area
4840696369045446
Volume
2.2915792875226E+22
Space diagonal
49197034.306173
Perimeter
85211763
Area
3.493471689667E+14
Altitude
24598517.153086
Surface area
3.493471689667E+14
Volume
2.7006520897231E+21
Height
13389736.767591