28285215 is an odd 8-digits composite number following 28285214
and preceding 28285216 . In scientific notation, it is written as 2.8285215 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12930336 positive integers (up to 28285215) that are relatively prime to 28285215.
28285215 has 16 divisors, whose sum is 51721728
The reverse of 28285215 is 51258282
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million two hundred eighty-five thousand two hundred fifteen
Scientific notation
2.8285215 × 10^7
Engineering notation
2.8285215 × 10^6
Prime Factorization
3 × 5 × 7 × 269383
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28285215
Product of the distinct prime numbers
The prime factorization of 28285215 is 3 × 5 × 7 × 269383.
Since it has a total of 4 prime factors.
1 , 3 , 9 , 16 , 930 , 646 , 9925 , 8285 , 43556 , 67981 , 874855 , 609979 , 783485 , 1102595 , 22343569 , 98294473 , 826361553 , 670958419 , 5681768309 , 6804301819
n×2
56570430
n×3
84855645
n×4
113140860
n×5
141426075
n÷2
14142607.5
n÷3
9428405
n÷3
7071303.75
n÷5
5657043
n2
800053387596225
n3
2.2629682079638E+22
n4
6.400854230042E+29
n5
1.810495380804E+37
2 √n
5318.3846231727
3 √n
304.68646450667
4 √n
72.927255694786
5 √n
30.925155840991
1 , 3 , 5 , 7 , 15 , 21 , 35 , 105 , 269383 , 808149 , 1346915 , 1885681 , 4040745 , 5657043 , 9428405 , 28285215
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28285214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28285215 can be divided by 16 positive divisors.
The sum of these divisors (counting 28285215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011111001100100011111
3
Ternary
1222020001000120
4
Quaternary
1223321210133
5
Quinary
24220111330
6
Senary
2450130023
8
Octal
153714437
10
Decimal
28285215
12
Duodecimal
9580913
16
Hexadecimal
1af991f
20
Vigesimal
8gfd0f
36
Base36
gu90f
md5
d1a921980e79c624d140ae6ecaae6fce
sha1
d327039e401944726cfd3405dd55769df00b101d
sha256
fedb62fd5a8be6b4ec93fc678f482583a5d792daf6d7f1bc7e9993624faad5b7
sha512
e8341c12ef731fb62cda99b70dc0a4ec60b8a1fa994e397d1cda916b212be56d0ce6fe5f4c2269605ec6b6e1ea33b6b795c42206ef547011af307ac71234f9a4
ripemd-160
a40c24da475d2013a21a4303693976a7c27ad338
Diameter
56570430
Circumference
177721247.29842
Area
2.5134418449519E+15
Volume
9.4790990632616E+22
Surface area
1.0053767379808E+16
Circumference
177721247.29842
Perimeter
113140860
Area
800053387596225
Diagonal
40001334.667639
Surface area
4800320325577350
Volume
2.2629682079638E+22
Space diagonal
48991429.483009
Perimeter
84855645
Area
3.4643327902106E+14
Altitude
24495714.741505
Surface area
3.4643327902106E+14
Volume
2.6669336091012E+21
Height
13333778.222546