20904 is an even 5-digits composite number following 20903
and preceding 20905 . In scientific notation, it is written as 2.0904 × 10^4.
The sum of its digits is 15. It has a total of 6 prime factors and 32 positive divisors.
There are 6336 positive integers (up to 20904) that are relatively prime to 20904.
20904 has 32 divisors, whose sum is 57120
The reverse of 20904 is 40902
Previous prime number is 13
Is Prime? no
Number parity even
Number length 5
Sum of Digits 15
Digital Root 6
Name
twenty thousand nine hundred four
Scientific notation
2.0904 × 10^4
Engineering notation
2.0904 × 10^3
Prime Factorization
2 × 2 × 2 × 3 × 13 × 67
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5226
Product of the distinct prime numbers
The prime factorization of 20904 is 2 × 2 × 2 × 3 × 13 × 67.
Since it has a total of 6 prime factors.
8 , 2 , 87 , 98 , 906 , 876 , 5380 , 7045 , 97956 , 10445 , 532279 , 612255 , 4243915 , 4555370 , 74994522 , 701027 , 189847629 , 913679094 , 6255765847 , 2428342587
n×2
41808
n×3
62712
n×4
83616
n×5
104520
n÷2
10452
n÷3
6968
n÷3
5226
n÷5
4180.8
n2
436977216
n3
9134571723264
n4
190949087303110656
n5
3.9915997209842E+21
2 √n
144.58215657542
3 √n
27.547136789168
4 √n
12.024232057617
5 √n
7.3121632589542
1 , 2 , 3 , 4 , 6 , 8 , 12 , 13 , 24 , 26 , 39 , 52 , 67 , 78 , 104 , 134 , 156 , 201 , 268 , 312 , 402 , 536 , 804 , 871 , 1608 , 1742 , 2613 , 3484 , 5226 , 6968 , 10452 , 20904
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20904 can be divided by 32 positive divisors.
The sum of these divisors (counting 20904) is 1, the average is 0.03125.
Base
System
Value
2
Binary
101000110101000
3
Ternary
1001200020
4
Quaternary
11012220
5
Quinary
1132104
6
Senary
240440
8
Octal
50650
10
Decimal
20904
12
Duodecimal
10120
16
Hexadecimal
51a8
20
Vigesimal
2c54
36
Base36
g4o
md5
8cb060b4a9c350a9d34b588479d20c9f
sha1
cef4816eee9bdbe2fafc4ab414f1806b427f193b
sha256
1f917a50f78f0d96b24205c054428ba2a921d488ffbe6ca2079cbac23c778f44
sha512
3d6101f42b29ae0a95b1c1c5574d2ccf5f960b527b335d170340c4acca5135cf92a15a8cc0303199595a0caf8b88acb06dc00c773e2fd2eb0cdbe5322a369f2b
ripemd-160
2ba9ac436d506658fd4ae0209dc5c26f7f2707f1
Diameter
41808
Circumference
131343.70566128
Area
1372804411.5717
Volume
38262804559327
Surface area
5491217646.2869
Circumference
131343.70566128
Perimeter
83616
Area
436977216
Diagonal
29562.720307847
Surface area
2621863296
Volume
9134571723264
Space diagonal
36206.79008142
Perimeter
62712
Area
189216684.9655
Altitude
18103.39504071
Surface area
189216684.9655
Volume
1076519601459.1
Height
9854.2401026157