28696821 is an odd 8-digits composite number following 28696820
and preceding 28696822 . In scientific notation, it is written as 2.8696821 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 18124272 positive integers (up to 28696821) that are relatively prime to 28696821.
28696821 has 4 divisors, whose sum is 29200332
The reverse of 28696821 is 12869682
Previous prime number is 57
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million six hundred ninety-six thousand eight hundred twenty-one
Scientific notation
2.8696821 × 10^7
Engineering notation
2.8696821 × 10^6
Prime Factorization
57 × 503453
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28696821
Product of the distinct prime numbers
The prime factorization of 28696821 is 57 × 503453.
Since it has a total of 2 prime factors.
5 , 10 , 35 , 64 , 983 , 622 , 6309 , 5524 , 12823 , 61494 , 339910 , 787121 , 7524098 , 9612597 , 95165534 , 69474052 , 56809129 , 512604965 , 9529676344 , 6561098325
n×2
57393642
n×3
86090463
n×4
114787284
n×5
143484105
n÷2
14348410.5
n÷3
9565607
n÷3
7174205.25
n÷5
5739364.2
n2
823507535506041
n3
2.3632048338568E+22
n4
6.7816466103523E+29
n5
1.9461169886254E+37
2 √n
5356.9413847829
3 √n
306.15728383114
4 √n
73.191129139964
5 √n
31.014640947123
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
-28696820
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 28696821 can be divided by 4 positive divisors.
The sum of these divisors (counting 28696821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011110000011110101
3
Ternary
1222222221122020
4
Quaternary
1231132003311
5
Quinary
24321244241
6
Senary
2503023353
8
Octal
155360365
10
Decimal
28696821
12
Duodecimal
973ab59
16
Hexadecimal
1b5e0f5
20
Vigesimal
8j7211
36
Base36
h32lx
md5
60bb37f7b7f236c0193656650b8dc986
sha1
81e3f8d5f7535fda7d8bc1bbfa1a987720d88502
sha256
4aee7816662677bfb243e57ca3d26c82de1eb46251aabb4fac8cb220f98e525e
sha512
93d847533a34760dda9c2838c016b85c08e667b37e3a1b0d988eacd20518751a0eb1a50a1f5c5664c7b6649119253a0104c055e431aa2f07b9cc1d73eb75c241
ripemd-160
1a73fc7a42b47ad6a9949326bd4f4efe5c898c03
Diameter
57393642
Circumference
180307444.06996
Area
2.5871252237216E+15
Volume
9.8989692599632E+22
Surface area
1.0348500894886E+16
Circumference
180307444.06996
Perimeter
114787284
Area
823507535506041
Diagonal
40583433.455193
Surface area
4941045213036246
Volume
2.3632048338568E+22
Space diagonal
49704351.98771
Perimeter
86090463
Area
3.5658922297807E+14
Altitude
24852175.993855
Surface area
3.5658922297807E+14
Volume
2.7850636055883E+21
Height
13527811.151731