28908 is an even 5-digits composite number following 28907
and preceding 28909 . In scientific notation, it is written as 2.8908 × 10^4.
The sum of its digits is 27. It has a total of 6 prime factors and 36 positive divisors.
There are 8640 positive integers (up to 28908) that are relatively prime to 28908.
28908 has 36 divisors, whose sum is 80808
The reverse of 28908 is 80982
Previous prime number is 11
Is Prime? no
Number parity even
Number length 5
Sum of Digits 27
Digital Root 9
Name
twenty-eight thousand nine hundred eight
Scientific notation
2.8908 × 10^4
Engineering notation
2.8908 × 10^3
Prime Factorization
2 × 2 × 3 × 3 × 11 × 73
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
4818
Product of the distinct prime numbers
The prime factorization of 28908 is 2 × 2 × 3 × 3 × 11 × 73.
Since it has a total of 6 prime factors.
1 , 7 , 86 , 86 , 430 , 928 , 2807 , 8351 , 18481 , 53041 , 161079 , 116545 , 6445693 , 374299 , 89241380 , 26630276 , 901397743 , 582352266 , 9564161176 , 12803892
n×2
57816
n×3
86724
n×4
115632
n×5
144540
n÷2
14454
n÷3
9636
n÷3
7227
n÷5
5781.6
n2
835672464
n3
24157619589312
n4
698348467087831296
n5
2.0187857486575E+22
2 √n
170.02352778366
3 √n
30.690644972553
4 √n
13.039307028506
5 √n
7.8019580206414
1 , 2 , 3 , 4 , 6 , 9 , 11 , 12 , 18 , 22 , 33 , 36 , 44 , 66 , 73 , 99 , 132 , 146 , 198 , 219 , 292 , 396 , 438 , 657 , 803 , 876 , 1314 , 1606 , 2409 , 2628 , 3212 , 4818 , 7227 , 9636 , 14454 , 28908
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
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
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28908 can be divided by 36 positive divisors.
The sum of these divisors (counting 28908) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
111000011101100
3
Ternary
1110122200
4
Quaternary
13003230
5
Quinary
1411113
6
Senary
341500
8
Octal
70354
10
Decimal
28908
12
Duodecimal
14890
16
Hexadecimal
70ec
20
Vigesimal
3c58
36
Base36
mb0
md5
3603599ee31fce12be0faf0958263356
sha1
24c4da6ac2fdce0a4f3659817762cb024b698b8c
sha256
aeb80ca8e9013c021800424bea5da21e73a9bd39b743c6cd8ee5c9e089bb296f
sha512
209b0a266aae79f349a7c7ad8a56cc8688ce4a1ab1227fe7e1c9af866d825fda998e4328d7da9aba7df80dfa7a4eff00e514467fb11fd2d045a3a26864b2e161
ripemd-160
7256093bf7c0c620fde138e5a07713250f0358b2
Diameter
57816
Circumference
181634.32085995
Area
2625342473.7097
Volume
1.0119120030667E+14
Surface area
10501369894.839
Circumference
181634.32085995
Perimeter
115632
Area
835672464
Diagonal
40882.085661081
Surface area
5014034784
Volume
24157619589312
Space diagonal
50070.124745201
Perimeter
86724
Area
361856791.53357
Altitude
25035.062372601
Surface area
361856791.53357
Volume
2847002771487.9
Height
13627.361887027